57012505 has 16 divisors (see below), whose sum is σ = 75024000. Its totient is φ = 41247360.

The previous prime is 57012499. The next prime is 57012517. The reversal of 57012505 is 50521075.

It is a happy number.

It is not a de Polignac number, because 57012505 - 2³ = 57012497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57012505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8341 + ... + 13549.

It is an arithmetic number, because the mean of its divisors is an integer number (4689000).

Almost surely, 2^57012505 is an apocalyptic number.

57012505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57012505 is a deficient number, since it is larger than the sum of its proper divisors (18011495).

57012505 is a wasteful number, since it uses less digits than its factorization.

57012505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5424.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 57012505 is about 7550.6625537101. The cubic root of 57012505 is about 384.8782546410.

The spelling of 57012505 in words is "fifty-seven million, twelve thousand, five hundred five".