54907581 has 8 divisors (see below), whose sum is σ = 73481344. Its totient is φ = 36469440.

The previous prime is 54907579. The next prime is 54907591. The reversal of 54907581 is 18570945.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54907581 - 2¹ = 54907579 is a prime.

It is a super-2 number, since 2×54907581² = 6029684902543122, 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 (54907591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32956 + ... + 34581.

It is an arithmetic number, because the mean of its divisors is an integer number (9185168).

Almost surely, 2^54907581 is an apocalyptic number.

It is an amenable number.

54907581 is a deficient number, since it is larger than the sum of its proper divisors (18573763).

54907581 is a wasteful number, since it uses less digits than its factorization.

54907581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67811.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 54907581 is about 7409.9649796743. The cubic root of 54907581 is about 380.0821175256.

The spelling of 54907581 in words is "fifty-four million, nine hundred seven thousand, five hundred eighty-one".