54896581 has 4 divisors (see below), whose sum is σ = 56235564. Its totient is φ = 53557600.

The previous prime is 54896573. The next prime is 54896591. The reversal of 54896581 is 18569845.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29484900 + 25411681 = 5430^2 + 5041^2 .

It is a cyclic number.

It is not a de Polignac number, because 54896581 - 2³ = 54896573 is a prime.

It is a super-2 number, since 2×54896581² = 6027269210979122, 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 (54896531) 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, 669430 + ... + 669511.

It is an arithmetic number, because the mean of its divisors is an integer number (14058891).

Almost surely, 2^54896581 is an apocalyptic number.

It is an amenable number.

54896581 is a deficient number, since it is larger than the sum of its proper divisors (1338983).

54896581 is a wasteful number, since it uses less digits than its factorization.

54896581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338982.

The product of its digits is 345600, while the sum is 46.

The square root of 54896581 is about 7409.2226987721. Note that the first 3 decimals coincide. The cubic root of 54896581 is about 380.0567343730.

The spelling of 54896581 in words is "fifty-four million, eight hundred ninety-six thousand, five hundred eighty-one".