56661102 has 24 divisors (see below), whose sum is σ = 129987936. Its totient is φ = 17775936.

The previous prime is 56661079. The next prime is 56661107. The reversal of 56661102 is 20116665.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56661107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92278 + ... + 92889.

It is an arithmetic number, because the mean of its divisors is an integer number (5416164).

Almost surely, 2^56661102 is an apocalyptic number.

56661102 is an abundant number, since it is smaller than the sum of its proper divisors (73326834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56661102 is a wasteful number, since it uses less digits than its factorization.

56661102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185192 (or 185189 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 56661102 is about 7527.3569066439. The cubic root of 56661102 is about 384.0858776028.

Adding to 56661102 its reverse (20116665), we get a palindrome (76777767).

The spelling of 56661102 in words is "fifty-six million, six hundred sixty-one thousand, one hundred two".