56110989 has 16 divisors (see below), whose sum is σ = 81805824. Its totient is φ = 33927600.

The previous prime is 56110987. The next prime is 56111021. The reversal of 56110989 is 98901165.

It is not a de Polignac number, because 56110989 - 2¹ = 56110987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56110987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14472 + ... + 17934.

It is an arithmetic number, because the mean of its divisors is an integer number (5112864).

Almost surely, 2^56110989 is an apocalyptic number.

It is an amenable number.

56110989 is a deficient number, since it is larger than the sum of its proper divisors (25694835).

56110989 is a wasteful number, since it uses less digits than its factorization.

56110989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 56110989 is about 7490.7268672673. The cubic root of 56110989 is about 382.8388248974.

The spelling of 56110989 in words is "fifty-six million, one hundred ten thousand, nine hundred eighty-nine".