57027540 has 24 divisors (see below), whose sum is σ = 159677280. Its totient is φ = 15207328.

The previous prime is 57027533. The next prime is 57027559. The reversal of 57027540 is 4572075.

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 = 57027498 and 57027507.

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, 475170 + ... + 475289.

It is an arithmetic number, because the mean of its divisors is an integer number (6653220).

Almost surely, 2^57027540 is an apocalyptic number.

It is an amenable number.

57027540 is an abundant number, since it is smaller than the sum of its proper divisors (102649740).

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

57027540 is a wasteful number, since it uses less digits than its factorization.

57027540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950471 (or 950469 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 57027540 is about 7551.6580960740. The cubic root of 57027540 is about 384.9120842716.

The spelling of 57027540 in words is "fifty-seven million, twenty-seven thousand, five hundred forty".