56102904 has 96 divisors (see below), whose sum is σ = 178542000. Its totient is φ = 15690240.

The previous prime is 56102903. The next prime is 56102971. The reversal of 56102904 is 40920165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56102903) 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, 7572 + ... + 13020.

Almost surely, 2^56102904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56102904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89271000).

56102904 is an abundant number, since it is smaller than the sum of its proper divisors (122439096).

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

56102904 is a wasteful number, since it uses less digits than its factorization.

56102904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5485 (or 5478 counting only the distinct ones).

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

The square root of 56102904 is about 7490.1871805717. The cubic root of 56102904 is about 382.8204363391.

The spelling of 56102904 in words is "fifty-six million, one hundred two thousand, nine hundred four".