57261552 has 40 divisors (see below), whose sum is σ = 151371264. Its totient is φ = 18642624.

The previous prime is 57261551. The next prime is 57261553. The reversal of 57261552 is 25516275.

It is an interprime number because it is at equal distance from previous prime (57261551) and next prime (57261553).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57261551) 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, 11808 + ... + 15935.

Almost surely, 2^57261552 is an apocalyptic number.

It is an amenable number.

57261552 is an abundant number, since it is smaller than the sum of its proper divisors (94109712).

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

57261552 is a wasteful number, since it uses less digits than its factorization.

57261552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27797 (or 27791 counting only the distinct ones).

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

The square root of 57261552 is about 7567.1363143530. The cubic root of 57261552 is about 385.4378601848.

The spelling of 57261552 in words is "fifty-seven million, two hundred sixty-one thousand, five hundred fifty-two".