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253024925 = 5210120997
BaseRepresentation
bin11110001010011…
…01101010011101
3122122002222221112
433011031222131
51004233244200
641035111405
76161450666
oct1705155235
9578088845
10253024925
1111a90a40a
12708a2565
13405614ba
142586636d
1517330535
hexf14da9d

253024925 has 6 divisors (see below), whose sum is σ = 313750938. Its totient is φ = 202419920.

The previous prime is 253024867. The next prime is 253024931. The reversal of 253024925 is 529420352.

It can be written as a sum of positive squares in 3 ways, for example, as 151321 + 252873604 = 389^2 + 15902^2 .

It is not a de Polignac number, because 253024925 - 220 = 251976349 is a prime.

It is a super-2 number, since 2×2530249252 = 128043225342511250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253024891 and 253024900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5060474 + ... + 5060523.

It is an arithmetic number, because the mean of its divisors is an integer number (52291823).

Almost surely, 2253024925 is an apocalyptic number.

253024925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253024925 is a deficient number, since it is larger than the sum of its proper divisors (60726013).

253024925 is a wasteful number, since it uses less digits than its factorization.

253024925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10121007 (or 10121002 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 253024925 is about 15906.7572119524. The cubic root of 253024925 is about 632.4911235195.

The spelling of 253024925 in words is "two hundred fifty-three million, twenty-four thousand, nine hundred twenty-five".

Divisors: 1 5 25 10120997 50604985 253024925