54485581 has 4 divisors (see below), whose sum is σ = 54503712. Its totient is φ = 54467452.

The previous prime is 54485573. The next prime is 54485591. The reversal of 54485581 is 18558445.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54485581 - 2³ = 54485573 is a prime.

It is a super-2 number, since 2×54485581² = 5937357073815122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54485591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3361 + ... + 10966.

It is an arithmetic number, because the mean of its divisors is an integer number (13625928).

Almost surely, 2^54485581 is an apocalyptic number.

It is an amenable number.

54485581 is a deficient number, since it is larger than the sum of its proper divisors (18131).

54485581 is a wasteful number, since it uses less digits than its factorization.

54485581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18130.

The product of its digits is 128000, while the sum is 40.

The square root of 54485581 is about 7381.4348876082. The cubic root of 54485581 is about 379.1058872482.

The spelling of 54485581 in words is "fifty-four million, four hundred eighty-five thousand, five hundred eighty-one".