56648790 has 48 divisors (see below), whose sum is σ = 160679376. Its totient is φ = 13732800.

The previous prime is 56648789. The next prime is 56648797. The reversal of 56648790 is 9784665.

56648790 is a `hidden beast` number, since 566 + 4 + 87 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56648797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27621 + ... + 29600.

It is an arithmetic number, because the mean of its divisors is an integer number (3347487).

Almost surely, 2^56648790 is an apocalyptic number.

56648790 is an abundant number, since it is smaller than the sum of its proper divisors (104030586).

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

56648790 is a wasteful number, since it uses less digits than its factorization.

56648790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57245 (or 57242 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 56648790 is about 7526.5390452717. The cubic root of 56648790 is about 384.0580560009.

It can be divided in two parts, 56 and 648790, that added together give a palindrome (648846).

The spelling of 56648790 in words is "fifty-six million, six hundred forty-eight thousand, seven hundred ninety".