54721404 has 72 divisors (see below), whose sum is σ = 142571520. Its totient is φ = 17690400.

The previous prime is 54721399. The next prime is 54721411. The reversal of 54721404 is 40412745.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201789 + ... + 202059.

It is an arithmetic number, because the mean of its divisors is an integer number (1980160).

Almost surely, 2^54721404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54721404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71285760).

54721404 is an abundant number, since it is smaller than the sum of its proper divisors (87850116).

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

54721404 is a wasteful number, since it uses less digits than its factorization.

54721404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 54721404 is about 7397.3917024854. The cubic root of 54721404 is about 379.6520452897.

The spelling of 54721404 in words is "fifty-four million, seven hundred twenty-one thousand, four hundred four".