55160581 has 16 divisors (see below), whose sum is σ = 65514240. Its totient is φ = 45440640.

The previous prime is 55160579. The next prime is 55160587. The reversal of 55160581 is 18506155.

55160581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55160581 - 2¹ = 55160579 is a prime.

It is a super-2 number, since 2×55160581² = 6085379392515122, 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 (55160587) 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, 56560 + ... + 57526.

It is an arithmetic number, because the mean of its divisors is an integer number (4094640).

Almost surely, 2^55160581 is an apocalyptic number.

It is an amenable number.

55160581 is a deficient number, since it is larger than the sum of its proper divisors (10353659).

55160581 is a wasteful number, since it uses less digits than its factorization.

55160581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284.

The product of its (nonzero) digits is 6000, while the sum is 31.

The square root of 55160581 is about 7427.0169651079. The cubic root of 55160581 is about 380.6649967092.

The spelling of 55160581 in words is "fifty-five million, one hundred sixty thousand, five hundred eighty-one".