57006388 has 12 divisors (see below), whose sum is σ = 100115680. Its totient is φ = 28401912.

The previous prime is 57006361. The next prime is 57006401. The reversal of 57006388 is 88360075.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24048 + ... + 26311.

Almost surely, 2^57006388 is an apocalyptic number.

It is an amenable number.

57006388 is a deficient number, since it is larger than the sum of its proper divisors (43109292).

57006388 is a wasteful number, since it uses less digits than its factorization.

57006388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50646 (or 50644 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 57006388 is about 7550.2574790533. The cubic root of 57006388 is about 384.8644893305.

The spelling of 57006388 in words is "fifty-seven million, six thousand, three hundred eighty-eight".