54635581 has 16 divisors (see below), whose sum is σ = 73358208. Its totient is φ = 39297600.

The previous prime is 54635579. The next prime is 54635597. The reversal of 54635581 is 18553645.

54635581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 54635581 - 2¹ = 54635579 is a prime.

It is a super-2 number, since 2×54635581² = 5970093422415122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54635581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54635561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26290 + ... + 28291.

It is an arithmetic number, because the mean of its divisors is an integer number (4584888).

Almost surely, 2^54635581 is an apocalyptic number.

It is an amenable number.

54635581 is a deficient number, since it is larger than the sum of its proper divisors (18722627).

54635581 is a wasteful number, since it uses less digits than its factorization.

54635581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54612.

The product of its digits is 72000, while the sum is 37.

The square root of 54635581 is about 7391.5885302146. The cubic root of 54635581 is about 379.4534640894.

The spelling of 54635581 in words is "fifty-four million, six hundred thirty-five thousand, five hundred eighty-one".