54490239 has 20 divisors (see below), whose sum is σ = 82055424. Its totient is φ = 36033984.

The previous prime is 54490237. The next prime is 54490291. The reversal of 54490239 is 93209445.

54490239 is a `hidden beast` number, since 544 + 90 + 23 + 9 = 666.

It is not a de Polignac number, because 54490239 - 2¹ = 54490237 is a prime.

It is a super-2 number, since 2×54490239² = 5938372292554242, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54490237) 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 19 ways as a sum of consecutive naturals, for example, 7639 + ... + 12935.

Almost surely, 2^54490239 is an apocalyptic number.

54490239 is a deficient number, since it is larger than the sum of its proper divisors (27565185).

54490239 is a wasteful number, since it uses less digits than its factorization.

54490239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5436 (or 5427 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 54490239 is about 7381.7504021743. The cubic root of 54490239 is about 379.1166902586.

The spelling of 54490239 in words is "fifty-four million, four hundred ninety thousand, two hundred thirty-nine".