54220491 has 48 divisors (see below), whose sum is σ = 88058880. Its totient is φ = 31933440.

The previous prime is 54220477. The next prime is 54220493. The reversal of 54220491 is 19402245.

54220491 is a nontrivial binomial coefficient, being equal to C(10414, 2).

It is not a de Polignac number, because 54220491 - 2⁶ = 54220427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54220493) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 426870 + ... + 426996.

It is an arithmetic number, because the mean of its divisors is an integer number (1834560).

Almost surely, 2^54220491 is an apocalyptic number.

54220491 is the 10413-rd triangular number and also the 5207-th hexagonal number.

54220491 is a deficient number, since it is larger than the sum of its proper divisors (33838389).

54220491 is a wasteful number, since it uses less digits than its factorization.

54220491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 273 counting only the distinct ones).

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

The square root of 54220491 is about 7363.4564573983. The cubic root of 54220491 is about 378.4900631252.

The spelling of 54220491 in words is "fifty-four million, two hundred twenty thousand, four hundred ninety-one".