54731772 has 36 divisors (see below), whose sum is σ = 146489616. Its totient is φ = 17170560.

The previous prime is 54731767. The next prime is 54731783. The reversal of 54731772 is 27713745.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44104 + ... + 45327.

It is an arithmetic number, because the mean of its divisors is an integer number (4069156).

Almost surely, 2^54731772 is an apocalyptic number.

It is an amenable number.

54731772 is an abundant number, since it is smaller than the sum of its proper divisors (91757844).

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

54731772 is a wasteful number, since it uses less digits than its factorization.

54731772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89458 (or 89453 counting only the distinct ones).

The product of its digits is 41160, while the sum is 36.

The square root of 54731772 is about 7398.0924568432. The cubic root of 54731772 is about 379.6760211842.

The spelling of 54731772 in words is "fifty-four million, seven hundred thirty-one thousand, seven hundred seventy-two".