57006040 has 64 divisors (see below), whose sum is σ = 157872960. Its totient is φ = 18040320.

The previous prime is 57006017. The next prime is 57006043. The reversal of 57006040 is 4060075.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57006043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4191 + ... + 11470.

It is an arithmetic number, because the mean of its divisors is an integer number (2466765).

Almost surely, 2^57006040 is an apocalyptic number.

It is an amenable number.

57006040 is an abundant number, since it is smaller than the sum of its proper divisors (100866920).

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

57006040 is a wasteful number, since it uses less digits than its factorization.

57006040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15692 (or 15688 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 57006040 is about 7550.2344334464. The cubic root of 57006040 is about 384.8637061837.

The spelling of 57006040 in words is "fifty-seven million, six thousand, forty".