52161837 has 32 divisors (see below), whose sum is σ = 86214912. Its totient is φ = 27316224.

The previous prime is 52161833. The next prime is 52161877. The reversal of 52161837 is 73816125.

It is not a de Polignac number, because 52161837 - 2² = 52161833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52161798 and 52161807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52161833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42253 + ... + 43469.

It is an arithmetic number, because the mean of its divisors is an integer number (2694216).

Almost surely, 2^52161837 is an apocalyptic number.

It is an amenable number.

52161837 is a deficient number, since it is larger than the sum of its proper divisors (34053075).

52161837 is a wasteful number, since it uses less digits than its factorization.

52161837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397.

The product of its digits is 10080, while the sum is 33.

The square root of 52161837 is about 7222.3152105125. The cubic root of 52161837 is about 373.6379315978.

The spelling of 52161837 in words is "fifty-two million, one hundred sixty-one thousand, eight hundred thirty-seven".