52157392 has 40 divisors (see below), whose sum is σ = 116240576. Its totient is φ = 22208256.

The previous prime is 52157359. The next prime is 52157393. The reversal of 52157392 is 29375125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52157393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16828 + ... + 19684.

Almost surely, 2^52157392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52157392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58120288).

52157392 is an abundant number, since it is smaller than the sum of its proper divisors (64083184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52157392 is a wasteful number, since it uses less digits than its factorization.

52157392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035 (or 3029 counting only the distinct ones).

The product of its digits is 18900, while the sum is 34.

The square root of 52157392 is about 7222.0074771493. The cubic root of 52157392 is about 373.6273180415.

The spelling of 52157392 in words is "fifty-two million, one hundred fifty-seven thousand, three hundred ninety-two".