52657152 has 88 divisors (see below), whose sum is σ = 143158992. Its totient is φ = 17203200.

The previous prime is 52657147. The next prime is 52657169. The reversal of 52657152 is 25175625.

It is a super-2 number, since 2×52657152² = 5545551313502208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187252 + ... + 187532.

Almost surely, 2^52657152 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 52657152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71579496).

52657152 is an abundant number, since it is smaller than the sum of its proper divisors (90501840).

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

52657152 is a wasteful number, since it uses less digits than its factorization.

52657152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 347 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 52657152 is about 7256.5247880787. The cubic root of 52657152 is about 374.8168634661.

The spelling of 52657152 in words is "fifty-two million, six hundred fifty-seven thousand, one hundred fifty-two".