52156231 has 4 divisors (see below), whose sum is σ = 52212832. Its totient is φ = 52099632.

The previous prime is 52156211. The next prime is 52156241. The reversal of 52156231 is 13265125.

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 52156231 - 2¹³ = 52148039 is a prime.

It is a super-2 number, since 2×52156231² = 5440544864250722, 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 = 52156196 and 52156205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52156211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26895 + ... + 28768.

It is an arithmetic number, because the mean of its divisors is an integer number (13053208).

Almost surely, 2^52156231 is an apocalyptic number.

52156231 is a deficient number, since it is larger than the sum of its proper divisors (56601).

52156231 is an equidigital number, since it uses as much as digits as its factorization.

52156231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56600.

The product of its digits is 1800, while the sum is 25.

The square root of 52156231 is about 7221.9270973889. The cubic root of 52156231 is about 373.6245457624.

The spelling of 52156231 in words is "fifty-two million, one hundred fifty-six thousand, two hundred thirty-one".