56138576 has 20 divisors (see below), whose sum is σ = 117135732. Its totient is φ = 25910016.

The previous prime is 56138569. The next prime is 56138591. The reversal of 56138576 is 67583165.

It can be written as a sum of positive squares in 2 ways, for example, as 27836176 + 28302400 = 5276^2 + 5320^2 .

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, 134741 + ... + 135156.

Almost surely, 2^56138576 is an apocalyptic number.

It is an amenable number.

56138576 is an abundant number, since it is smaller than the sum of its proper divisors (60997156).

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

56138576 is a wasteful number, since it uses less digits than its factorization.

56138576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269918 (or 269912 counting only the distinct ones).

The product of its digits is 151200, while the sum is 41.

The square root of 56138576 is about 7492.5680510757. The cubic root of 56138576 is about 382.9015555941.

The spelling of 56138576 in words is "fifty-six million, one hundred thirty-eight thousand, five hundred seventy-six".