54626881 has 9 divisors (see below), whose sum is σ = 57801891. Its totient is φ = 51618744.

The previous prime is 54626879. The next prime is 54626917. The reversal of 54626881 is 18862645.

The square root of 54626881 is 7391.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12895281 + 41731600 = 3591^2 + 6460^2 .

It is not a de Polignac number, because 54626881 - 2¹ = 54626879 is a prime.

It is a super-2 number, since 2×54626881² = 5968192255576322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54626821) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 140235 + ... + 140623.

Almost surely, 2^54626881 is an apocalyptic number.

54626881 is the 7391-st square number.

54626881 is the 3696-th centered octagonal number.

It is an amenable number.

54626881 is a deficient number, since it is larger than the sum of its proper divisors (3175010).

54626881 is an frugal number, since it uses more digits than its factorization.

54626881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816 (or 408 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The cubic root of 54626881 is about 379.4333220238.

The spelling of 54626881 in words is "fifty-four million, six hundred twenty-six thousand, eight hundred eighty-one".