425520312 has 64 divisors (see below), whose sum is σ = 1240608000. Its totient is φ = 121574880.

The previous prime is 425520311. The next prime is 425520317. The reversal of 425520312 is 213025524.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425520311) 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, 17614 + ... + 34077.

It is an arithmetic number, because the mean of its divisors is an integer number (19384500).

Almost surely, 2^425520312 is an apocalyptic number.

425520312 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

425520312 is an abundant number, since it is smaller than the sum of its proper divisors (815087688).

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

425520312 is a wasteful number, since it uses less digits than its factorization.

425520312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51721 (or 51703 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 425520312 is about 20628.1436876904. The cubic root of 425520312 is about 752.1539927204.

Adding to 425520312 its reverse (213025524), we get a palindrome (638545836).

The spelling of 425520312 in words is "four hundred twenty-five million, five hundred twenty thousand, three hundred twelve".