54581607 has 20 divisors (see below), whose sum is σ = 84169536. Its totient is φ = 35212320.

The previous prime is 54581603. The next prime is 54581621. The reversal of 54581607 is 70618545.

54581607 is a `hidden beast` number, since 5 + 45 + 8 + 1 + 607 = 666.

54581607 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 54581607 - 2² = 54581603 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54581603) 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 19 ways as a sum of consecutive naturals, for example, 8358 + ... + 13379.

Almost surely, 2^54581607 is an apocalyptic number.

54581607 is a deficient number, since it is larger than the sum of its proper divisors (29587929).

54581607 is a wasteful number, since it uses less digits than its factorization.

54581607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21780 (or 21771 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 54581607 is about 7387.9365860841. The cubic root of 54581607 is about 379.3284700300.

The spelling of 54581607 in words is "fifty-four million, five hundred eighty-one thousand, six hundred seven".