54416581 has 4 divisors (see below), whose sum is σ = 54521152. Its totient is φ = 54312012.

The previous prime is 54416573. The next prime is 54416587. The reversal of 54416581 is 18561445.

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 54416581 - 2³ = 54416573 is a prime.

It is a super-2 number, since 2×54416581² = 5922328575459122, 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 (54416587) 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, 51501 + ... + 52546.

It is an arithmetic number, because the mean of its divisors is an integer number (13630288).

Almost surely, 2^54416581 is an apocalyptic number.

It is an amenable number.

54416581 is a deficient number, since it is larger than the sum of its proper divisors (104571).

54416581 is a wasteful number, since it uses less digits than its factorization.

54416581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104570.

The product of its digits is 19200, while the sum is 34.

The square root of 54416581 is about 7376.7595189216. The cubic root of 54416581 is about 378.9457876663.

The spelling of 54416581 in words is "fifty-four million, four hundred sixteen thousand, five hundred eighty-one".