425901520 has 80 divisors (see below), whose sum is σ = 1090055232. Its totient is φ = 153466880.

The previous prime is 425901503. The next prime is 425901521. The reversal of 425901520 is 25109524.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425901521) 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, 97299 + ... + 101581.

Almost surely, 2^425901520 is an apocalyptic number.

425901520 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 425901520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (545027616).

425901520 is an abundant number, since it is smaller than the sum of its proper divisors (664153712).

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

425901520 is a wasteful number, since it uses less digits than its factorization.

425901520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4420 (or 4414 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 425901520 is about 20637.3816168622. The cubic root of 425901520 is about 752.3785347152.

The spelling of 425901520 in words is "four hundred twenty-five million, nine hundred one thousand, five hundred twenty".