54893581 has 2 divisors, whose sum is σ = 54893582. Its totient is φ = 54893580.

The previous prime is 54893567. The next prime is 54893621. The reversal of 54893581 is 18539845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47955625 + 6937956 = 6925^2 + 2634^2 .

It is a cyclic number.

It is not a de Polignac number, because 54893581 - 2¹¹ = 54891533 is a prime.

It is a super-3 number, since 3×54893581³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54093581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27446790 + 27446791.

It is an arithmetic number, because the mean of its divisors is an integer number (27446791).

Almost surely, 2^54893581 is an apocalyptic number.

It is an amenable number.

54893581 is a deficient number, since it is larger than the sum of its proper divisors (1).

54893581 is an equidigital number, since it uses as much as digits as its factorization.

54893581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 43.

The square root of 54893581 is about 7409.0202456195. The cubic root of 54893581 is about 380.0498111066.

The spelling of 54893581 in words is "fifty-four million, eight hundred ninety-three thousand, five hundred eighty-one".