425502660 has 48 divisors (see below), whose sum is σ = 1299719232. Its totient is φ = 103152000.

The previous prime is 425502643. The next prime is 425502667. The reversal of 425502660 is 66205524.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (425502667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321691 + ... + 323010.

It is an arithmetic number, because the mean of its divisors is an integer number (27077484).

Almost surely, 2^425502660 is an apocalyptic number.

It is an amenable number.

425502660 is an abundant number, since it is smaller than the sum of its proper divisors (874216572).

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

425502660 is a wasteful number, since it uses less digits than its factorization.

425502660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644724 (or 644722 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 425502660 is about 20627.7158211955. The cubic root of 425502660 is about 752.1435919589.

The spelling of 425502660 in words is "four hundred twenty-five million, five hundred two thousand, six hundred sixty".