55160091 has 24 divisors (see below), whose sum is σ = 92218880. Its totient is φ = 31118256.

The previous prime is 55160089. The next prime is 55160101. The reversal of 55160091 is 19006155.

55160091 is a `hidden beast` number, since 5 + 51 + 600 + 9 + 1 = 666.

It is not a de Polignac number, because 55160091 - 2¹ = 55160089 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55160071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 565 + ... + 10518.

Almost surely, 2^55160091 is an apocalyptic number.

55160091 is a deficient number, since it is larger than the sum of its proper divisors (37058789).

55160091 is a wasteful number, since it uses less digits than its factorization.

55160091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11175 (or 11172 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 55160091 is about 7426.9839773625. The cubic root of 55160091 is about 380.6638695371.

The spelling of 55160091 in words is "fifty-five million, one hundred sixty thousand, ninety-one".