56111091 has 8 divisors (see below), whose sum is σ = 76406784. Its totient is φ = 36611400.

The previous prime is 56111063. The next prime is 56111141. The reversal of 56111091 is 19011165.

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

It is not a de Polignac number, because 56111091 - 2⁷ = 56110963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56111021) 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, 198835 + ... + 199116.

It is an arithmetic number, because the mean of its divisors is an integer number (9550848).

Almost surely, 2^56111091 is an apocalyptic number.

56111091 is a deficient number, since it is larger than the sum of its proper divisors (20295693).

56111091 is a wasteful number, since it uses less digits than its factorization.

56111091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398001.

The product of its (nonzero) digits is 270, while the sum is 24.

The square root of 56111091 is about 7490.7336756822. The cubic root of 56111091 is about 382.8390568754.

The spelling of 56111091 in words is "fifty-six million, one hundred eleven thousand, ninety-one".