56731455 has 96 divisors (see below), whose sum is σ = 116444160. Its totient is φ = 26136000.

The previous prime is 56731447. The next prime is 56731483. The reversal of 56731455 is 55413765.

It is not a de Polignac number, because 56731455 - 2³ = 56731447 is a prime.

Its product of digits (63000) is a multiple of the sum of its prime factors (210).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 375630 + ... + 375780.

It is an arithmetic number, because the mean of its divisors is an integer number (1212960).

Almost surely, 2^56731455 is an apocalyptic number.

56731455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56731455 is an abundant number, since it is smaller than the sum of its proper divisors (59712705).

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

56731455 is a wasteful number, since it uses less digits than its factorization.

56731455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 193 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 56731455 is about 7532.0286112043. The cubic root of 56731455 is about 384.2447780169.

The spelling of 56731455 in words is "fifty-six million, seven hundred thirty-one thousand, four hundred fifty-five".