425500644 has 48 divisors (see below), whose sum is σ = 1071745920. Its totient is φ = 130986240.

The previous prime is 425500643. The next prime is 425500661. The reversal of 425500644 is 446005524.

It is not an unprimeable number, because it can be changed into a prime (425500643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18577 + ... + 34584.

It is an arithmetic number, because the mean of its divisors is an integer number (22328040).

Almost surely, 2^425500644 is an apocalyptic number.

It is an amenable number.

425500644 is an abundant number, since it is smaller than the sum of its proper divisors (646245276).

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

425500644 is a wasteful number, since it uses less digits than its factorization.

425500644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53220 (or 53218 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 425500644 is about 20627.6669548449. Note that the first 3 decimals coincide. The cubic root of 425500644 is about 752.1424040902.

The spelling of 425500644 in words is "four hundred twenty-five million, five hundred thousand, six hundred forty-four".