425302520 has 64 divisors (see below), whose sum is σ = 974268000. Its totient is φ = 167067648.

The previous prime is 425302513. The next prime is 425302543. The reversal of 425302520 is 25203524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686771 + ... + 687389.

Almost surely, 2^425302520 is an apocalyptic number.

425302520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425302520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487134000).

425302520 is an abundant number, since it is smaller than the sum of its proper divisors (548965480).

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

425302520 is a wasteful number, since it uses less digits than its factorization.

425302520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 425302520 is about 20622.8640106073. The cubic root of 425302520 is about 752.0256470429.

The spelling of 425302520 in words is "four hundred twenty-five million, three hundred two thousand, five hundred twenty".