54490813 has 16 divisors (see below), whose sum is σ = 60592896. Its totient is φ = 48686400.

The previous prime is 54490789. The next prime is 54490829. The reversal of 54490813 is 31809445.

It is a cyclic number.

It is not a de Polignac number, because 54490813 - 2⁵ = 54490781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54490883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61270 + ... + 62152.

It is an arithmetic number, because the mean of its divisors is an integer number (3787056).

Almost surely, 2^54490813 is an apocalyptic number.

It is an amenable number.

54490813 is a deficient number, since it is larger than the sum of its proper divisors (6102083).

54490813 is a wasteful number, since it uses less digits than its factorization.

54490813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 54490813 is about 7381.7892817392. The cubic root of 54490813 is about 379.1180214586.

The spelling of 54490813 in words is "fifty-four million, four hundred ninety thousand, eight hundred thirteen".