556703640 has 48 divisors (see below), whose sum is σ = 1809288000. Its totient is φ = 148454208.

The previous prime is 556703639. The next prime is 556703663. The reversal of 556703640 is 46307655.

556703640 is a `hidden beast` number, since 5 + 5 + 6 + 7 + 0 + 3 + 640 = 666.

556703640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 556703595 and 556703604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 772840 + ... + 773559.

It is an arithmetic number, because the mean of its divisors is an integer number (37693500).

Almost surely, 2^556703640 is an apocalyptic number.

It is an amenable number.

556703640 is an abundant number, since it is smaller than the sum of its proper divisors (1252584360).

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

556703640 is a wasteful number, since it uses less digits than its factorization.

556703640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546416 (or 1546409 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 556703640 is about 23594.5680189318. The cubic root of 556703640 is about 822.6365857495.

The spelling of 556703640 in words is "five hundred fifty-six million, seven hundred three thousand, six hundred forty".