54976621 has 4 divisors (see below), whose sum is σ = 62830432. Its totient is φ = 47122812.

The previous prime is 54976591. The next prime is 54976631. The reversal of 54976621 is 12667945.

54976621 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, 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 54976621 - 2⁹ = 54976109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54976631) 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, 3926895 + ... + 3926908.

It is an arithmetic number, because the mean of its divisors is an integer number (15707608).

Almost surely, 2^54976621 is an apocalyptic number.

It is an amenable number.

54976621 is a deficient number, since it is larger than the sum of its proper divisors (7853811).

54976621 is an equidigital number, since it uses as much as digits as its factorization.

54976621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7853810.

The product of its digits is 90720, while the sum is 40.

The square root of 54976621 is about 7414.6221077004. The cubic root of 54976621 is about 380.2413540603.

The spelling of 54976621 in words is "fifty-four million, nine hundred seventy-six thousand, six hundred twenty-one".