57061539 has 12 divisors (see below), whose sum is σ = 82499872. Its totient is φ = 38005200.

The previous prime is 57061523. The next prime is 57061577. The reversal of 57061539 is 93516075.

It is a happy number.

57061539 is a `hidden beast` number, since 5 + 7 + 0 + 615 + 39 = 666.

57061539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57061539 - 2⁴ = 57061523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57061519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10134 + ... + 14724.

Almost surely, 2^57061539 is an apocalyptic number.

57061539 is a deficient number, since it is larger than the sum of its proper divisors (25438333).

57061539 is a wasteful number, since it uses less digits than its factorization.

57061539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5978 (or 5975 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 57061539 is about 7553.9088556852. The cubic root of 57061539 is about 384.9885620934.

It can be divided in two parts, 57061 and 539, that added together give a square (57600 = 240²).

The spelling of 57061539 in words is "fifty-seven million, sixty-one thousand, five hundred thirty-nine".