56727860 has 24 divisors (see below), whose sum is σ = 136147200. Its totient is φ = 19449504.

The previous prime is 56727833. The next prime is 56727871. The reversal of 56727860 is 6872765.

Added to its reverse (6872765) it gives a square (63600625 = 7975²).

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202460 + ... + 202739.

It is an arithmetic number, because the mean of its divisors is an integer number (5672800).

Almost surely, 2^56727860 is an apocalyptic number.

It is an amenable number.

56727860 is an abundant number, since it is smaller than the sum of its proper divisors (79419340).

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

56727860 is a wasteful number, since it uses less digits than its factorization.

56727860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405215 (or 405213 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 56727860 is about 7531.7899598967. The cubic root of 56727860 is about 384.2366614782.

Adding to 56727860 its reverse (6872765), we get a square (63600625 = 7975²).

The spelling of 56727860 in words is "fifty-six million, seven hundred twenty-seven thousand, eight hundred sixty".