57075400 has 24 divisors (see below), whose sum is σ = 132700770. Its totient is φ = 22830080.

The previous prime is 57075379. The next prime is 57075407. The reversal of 57075400 is 457075.

It can be written as a sum of positive squares in 3 ways, for example, as 22524516 + 34550884 = 4746^2 + 5878^2 .

It is not an unprimeable number, because it can be changed into a prime (57075407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142489 + ... + 142888.

Almost surely, 2^57075400 is an apocalyptic number.

57075400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57075400 is an abundant number, since it is smaller than the sum of its proper divisors (75625370).

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

57075400 is a wasteful number, since it uses less digits than its factorization.

57075400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285393 (or 285384 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 57075400 is about 7554.8262719933. The cubic root of 57075400 is about 385.0197325019.

It can be divided in two parts, 57075 and 400, that added together give a palindrome (57475).

The spelling of 57075400 in words is "fifty-seven million, seventy-five thousand, four hundred".