52156831 has 8 divisors (see below), whose sum is σ = 53056640. Its totient is φ = 51264792.

The previous prime is 52156781. The next prime is 52156837. The reversal of 52156831 is 13865125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52156831 - 2¹¹ = 52154783 is a prime.

It is a super-2 number, since 2×52156831² = 5440670039925122, 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 = 52156793 and 52156802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52156837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12496 + ... + 16138.

It is an arithmetic number, because the mean of its divisors is an integer number (6632080).

Almost surely, 2^52156831 is an apocalyptic number.

52156831 is a deficient number, since it is larger than the sum of its proper divisors (899809).

52156831 is a wasteful number, since it uses less digits than its factorization.

52156831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885.

The product of its digits is 7200, while the sum is 31.

The square root of 52156831 is about 7221.9686374284. The cubic root of 52156831 is about 373.6259784699.

The spelling of 52156831 in words is "fifty-two million, one hundred fifty-six thousand, eight hundred thirty-one".