54022491 has 64 divisors (see below), whose sum is σ = 90112000. Its totient is φ = 31842720.

The previous prime is 54022487. The next prime is 54022511. The reversal of 54022491 is 19422045.

54022491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54022491 - 2² = 54022487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54022421) 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 63 ways as a sum of consecutive naturals, for example, 683790 + ... + 683868.

It is an arithmetic number, because the mean of its divisors is an integer number (1408000).

Almost surely, 2^54022491 is an apocalyptic number.

54022491 is a deficient number, since it is larger than the sum of its proper divisors (36089509).

54022491 is a wasteful number, since it uses less digits than its factorization.

54022491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 54022491 is about 7349.9993877551. Note that the first 3 decimals coincide. The cubic root of 54022491 is about 378.0287833965.

The spelling of 54022491 in words is "fifty-four million, twenty-two thousand, four hundred ninety-one".