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53150531 = 77592933
BaseRepresentation
bin1100101011000…
…0001101000011
310201000022211012
43022300031003
5102101304111
65135111135
71213525550
oct312601503
9121008735
1053150531
1128002865
12159724ab
13b01c425
1470b7a27
1549ed48b
hex32b0343

53150531 has 4 divisors (see below), whose sum is σ = 60743472. Its totient is φ = 45557592.

The previous prime is 53150527. The next prime is 53150549. The reversal of 53150531 is 13505135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53150531 - 22 = 53150527 is a prime.

It is a super-2 number, since 2×531505312 = 5649957891163922, 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 = 53150497 and 53150506.

It is not an unprimeable number, because it can be changed into a prime (53150131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3796460 + ... + 3796473.

It is an arithmetic number, because the mean of its divisors is an integer number (15185868).

Almost surely, 253150531 is an apocalyptic number.

53150531 is a deficient number, since it is larger than the sum of its proper divisors (7592941).

53150531 is an equidigital number, since it uses as much as digits as its factorization.

53150531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7592940.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 53150531 is about 7290.4410703331. The cubic root of 53150531 is about 375.9838603114.

Adding to 53150531 its reverse (13505135), we get a palindrome (66655666).

The spelling of 53150531 in words is "fifty-three million, one hundred fifty thousand, five hundred thirty-one".

Divisors: 1 7 7592933 53150531