54588721 has 4 divisors (see below), whose sum is σ = 59551344. Its totient is φ = 49626100.

The previous prime is 54588707. The next prime is 54588731. The reversal of 54588721 is 12788545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54588721 - 2¹³ = 54580529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54588731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2481295 + ... + 2481316.

It is an arithmetic number, because the mean of its divisors is an integer number (14887836).

Almost surely, 2^54588721 is an apocalyptic number.

It is an amenable number.

54588721 is a deficient number, since it is larger than the sum of its proper divisors (4962623).

54588721 is a wasteful number, since it uses less digits than its factorization.

54588721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4962622.

The product of its digits is 89600, while the sum is 40.

The square root of 54588721 is about 7388.4180309455. The cubic root of 54588721 is about 379.3449494855.

The spelling of 54588721 in words is "fifty-four million, five hundred eighty-eight thousand, seven hundred twenty-one".