54581579 has 4 divisors (see below), whose sum is σ = 58780176. Its totient is φ = 50382984.

The previous prime is 54581557. The next prime is 54581581. The reversal of 54581579 is 97518545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54581579 - 2¹² = 54577483 is a prime.

It is a super-2 number, since 2×54581579² = 5958297532266482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54581279) 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, 2099279 + ... + 2099304.

It is an arithmetic number, because the mean of its divisors is an integer number (14695044).

Almost surely, 2^54581579 is an apocalyptic number.

54581579 is a deficient number, since it is larger than the sum of its proper divisors (4198597).

54581579 is a wasteful number, since it uses less digits than its factorization.

54581579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4198596.

The product of its digits is 252000, while the sum is 44.

The square root of 54581579 is about 7387.9346911028. The cubic root of 54581579 is about 379.3284051656.

The spelling of 54581579 in words is "fifty-four million, five hundred eighty-one thousand, five hundred seventy-nine".