54910581 has 16 divisors (see below), whose sum is σ = 80621568. Its totient is φ = 32966000.

The previous prime is 54910573. The next prime is 54910607. The reversal of 54910581 is 18501945.

It is a cyclic number.

It is not a de Polignac number, because 54910581 - 2³ = 54910573 is a prime.

It is a super-2 number, since 2×54910581² = 6030343811515122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54910511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4245 + ... + 11306.

It is an arithmetic number, because the mean of its divisors is an integer number (5038848).

Almost surely, 2^54910581 is an apocalyptic number.

It is an amenable number.

54910581 is a deficient number, since it is larger than the sum of its proper divisors (25710987).

54910581 is a wasteful number, since it uses less digits than its factorization.

54910581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15672.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 54910581 is about 7410.1674070158. The cubic root of 54910581 is about 380.0890396152.

The spelling of 54910581 in words is "fifty-four million, nine hundred ten thousand, five hundred eighty-one".