57261148 has 48 divisors (see below), whose sum is σ = 117621504. Its totient is φ = 23886720.

The previous prime is 57261143. The next prime is 57261161. The reversal of 57261148 is 84116275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57261143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245640 + ... + 245872.

It is an arithmetic number, because the mean of its divisors is an integer number (2450448).

Almost surely, 2^57261148 is an apocalyptic number.

It is an amenable number.

57261148 is an abundant number, since it is smaller than the sum of its proper divisors (60360356).

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

57261148 is a wasteful number, since it uses less digits than its factorization.

57261148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 440 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 57261148 is about 7567.1096199275. The cubic root of 57261148 is about 385.4369537170.

The spelling of 57261148 in words is "fifty-seven million, two hundred sixty-one thousand, one hundred forty-eight".