54860621 has 4 divisors (see below), whose sum is σ = 54886044. Its totient is φ = 54835200.

The previous prime is 54860591. The next prime is 54860639. The reversal of 54860621 is 12606845.

54860621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3222025 + 51638596 = 1795^2 + 7186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54860621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54860021) 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 3 ways as a sum of consecutive naturals, for example, 9140 + ... + 13901.

It is an arithmetic number, because the mean of its divisors is an integer number (13721511).

Almost surely, 2^54860621 is an apocalyptic number.

It is an amenable number.

54860621 is a deficient number, since it is larger than the sum of its proper divisors (25423).

54860621 is a wasteful number, since it uses less digits than its factorization.

54860621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25422.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 54860621 is about 7406.7955959376. The cubic root of 54860621 is about 379.9737308711.

The spelling of 54860621 in words is "fifty-four million, eight hundred sixty thousand, six hundred twenty-one".