57553140 has 24 divisors (see below), whose sum is σ = 161148960. Its totient is φ = 15347488.

The previous prime is 57553129. The next prime is 57553151. The reversal of 57553140 is 4135575.

It is an interprime number because it is at equal distance from previous prime (57553129) and next prime (57553151).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 57553098 and 57553107.

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, 479550 + ... + 479669.

It is an arithmetic number, because the mean of its divisors is an integer number (6714540).

Almost surely, 2^57553140 is an apocalyptic number.

It is an amenable number.

57553140 is an abundant number, since it is smaller than the sum of its proper divisors (103595820).

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

57553140 is a wasteful number, since it uses less digits than its factorization.

57553140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959231 (or 959229 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 57553140 is about 7586.3785826968. The cubic root of 57553140 is about 386.0909966499.

The spelling of 57553140 in words is "fifty-seven million, five hundred fifty-three thousand, one hundred forty".