54863721 has 12 divisors (see below), whose sum is σ = 86452080. Its totient is φ = 33250680.

The previous prime is 54863701. The next prime is 54863723. The reversal of 54863721 is 12736845.

54863721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54863721 - 2⁷ = 54863593 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (54863723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 276991 + ... + 277188.

It is an arithmetic number, because the mean of its divisors is an integer number (7204340).

Almost surely, 2^54863721 is an apocalyptic number.

It is an amenable number.

54863721 is a deficient number, since it is larger than the sum of its proper divisors (31588359).

54863721 is a wasteful number, since it uses less digits than its factorization.

54863721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554196 (or 554193 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 54863721 is about 7407.0048602657. The cubic root of 54863721 is about 379.9808877738.

The spelling of 54863721 in words is "fifty-four million, eight hundred sixty-three thousand, seven hundred twenty-one".