425591064 has 64 divisors (see below), whose sum is σ = 1220352000. Its totient is φ = 137285280.

The previous prime is 425591059. The next prime is 425591069. The reversal of 425591064 is 460195524.

425591064 is a `hidden beast` number, since 4 + 2 + 5 + 591 + 0 + 64 = 666.

It is an interprime number because it is at equal distance from previous prime (425591059) and next prime (425591069).

It is a super-2 number, since 2×425591064² = 362255507513304192, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425591069) 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 15 ways as a sum of consecutive naturals, for example, 25084 + ... + 38475.

It is an arithmetic number, because the mean of its divisors is an integer number (19068000).

Almost surely, 2^425591064 is an apocalyptic number.

It is an amenable number.

425591064 is an abundant number, since it is smaller than the sum of its proper divisors (794760936).

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

425591064 is a wasteful number, since it uses less digits than its factorization.

425591064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63605 (or 63595 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 425591064 is about 20629.8585550168. The cubic root of 425591064 is about 752.1956777263.

The spelling of 425591064 in words is "four hundred twenty-five million, five hundred ninety-one thousand, sixty-four".