54729720 has 48 divisors (see below), whose sum is σ = 177872760. Its totient is φ = 14594496.

The previous prime is 54729677. The next prime is 54729737. The reversal of 54729720 is 2792745.

54729720 is a `hidden beast` number, since 547 + 2 + 97 + 20 = 666.

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, 75654 + ... + 76373.

Almost surely, 2^54729720 is an apocalyptic number.

It is an amenable number.

54729720 is an abundant number, since it is smaller than the sum of its proper divisors (123143040).

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

54729720 is a wasteful number, since it uses less digits than its factorization.

54729720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152044 (or 152037 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 54729720 is about 7397.9537711451. The cubic root of 54729720 is about 379.6712761955.

The spelling of 54729720 in words is "fifty-four million, seven hundred twenty-nine thousand, seven hundred twenty".