425808875520 has 624 divisors, whose sum is σ = 1693069477632. Its totient is φ = 96967065600.

The previous prime is 425808875497. The next prime is 425808875537. The reversal of 425808875520 is 25578808524.

425808875520 is a `hidden beast` number, since 4 + 2 + 5 + 8 + 0 + 8 + 87 + 552 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 517385829 + ... + 517386651.

It is an arithmetic number, because the mean of its divisors is an integer number (2713252368).

Almost surely, 2^425808875520 is an apocalyptic number.

425808875520 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 425808875520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846534738816).

425808875520 is an abundant number, since it is smaller than the sum of its proper divisors (1267260602112).

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

425808875520 is a wasteful number, since it uses less digits than its factorization.

425808875520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 7168000, while the sum is 54.

The spelling of 425808875520 in words is "four hundred twenty-five billion, eight hundred eight million, eight hundred seventy-five thousand, five hundred twenty".