57375720 has 96 divisors (see below), whose sum is σ = 190494720. Its totient is φ = 14970240.

The previous prime is 57375713. The next prime is 57375727. The reversal of 57375720 is 2757375.

57375720 is a `hidden beast` number, since 57 + 37 + 572 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (57375713) and next prime (57375727).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (57375727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15225 + ... + 18615.

It is an arithmetic number, because the mean of its divisors is an integer number (1984320).

Almost surely, 2^57375720 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 57375720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95247360).

57375720 is an abundant number, since it is smaller than the sum of its proper divisors (133119000).

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

57375720 is a wasteful number, since it uses less digits than its factorization.

57375720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455 (or 3448 counting only the distinct ones).

The product of its (nonzero) digits is 51450, while the sum is 36.

The square root of 57375720 is about 7574.6762307045. The cubic root of 57375720 is about 385.6938519451.

The spelling of 57375720 in words is "fifty-seven million, three hundred seventy-five thousand, seven hundred twenty".