864425056 has 48 divisors (see below), whose sum is σ = 1859397120. Its totient is φ = 392318080.

The previous prime is 864425053. The next prime is 864425057. The reversal of 864425056 is 650524468.

864425056 = T₅₃ + T₅₄ + ... + T₁₇₃₀.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864425053) 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 7 ways as a sum of consecutive naturals, for example, 293865 + ... + 296791.

It is an arithmetic number, because the mean of its divisors is an integer number (38737440).

Almost surely, 2^864425056 is an apocalyptic number.

It is an amenable number.

864425056 is an abundant number, since it is smaller than the sum of its proper divisors (994972064).

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

864425056 is a wasteful number, since it uses less digits than its factorization.

864425056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787 (or 3779 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The square root of 864425056 is about 29401.1063737404. The cubic root of 864425056 is about 952.5967940799.

The spelling of 864425056 in words is "eight hundred sixty-four million, four hundred twenty-five thousand, fifty-six".