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10531885025 = 52421275401
BaseRepresentation
bin10011100111011111…
…11100111111100001
31000011222121012012202
421303233330333201
5133032130310100
64501022502545
7521663355104
oct116357747741
930158535182
1010531885025
114514a7a112
12205b134a55
13cbac5753c
1471ca5873b
154199237d5
hex273bfcfe1

10531885025 has 6 divisors (see below), whose sum is σ = 13059537462. Its totient is φ = 8425508000.

The previous prime is 10531885019. The next prime is 10531885031. The reversal of 10531885025 is 52058813501.

It is an interprime number because it is at equal distance from previous prime (10531885019) and next prime (10531885031).

It can be written as a sum of positive squares in 3 ways, for example, as 1905933649 + 8625951376 = 43657^2 + 92876^2 .

It is not a de Polignac number, because 10531885025 - 24 = 10531885009 is a prime.

It is a super-2 number, since 2×105318850252 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10531885025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210637676 + ... + 210637725.

It is an arithmetic number, because the mean of its divisors is an integer number (2176589577).

Almost surely, 210531885025 is an apocalyptic number.

It is an amenable number.

10531885025 is a deficient number, since it is larger than the sum of its proper divisors (2527652437).

10531885025 is an equidigital number, since it uses as much as digits as its factorization.

10531885025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421275411 (or 421275406 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 38.

The spelling of 10531885025 in words is "ten billion, five hundred thirty-one million, eight hundred eighty-five thousand, twenty-five".

Divisors: 1 5 25 421275401 2106377005 10531885025