425541520 has 20 divisors (see below), whose sum is σ = 989384220. Its totient is φ = 170216576.

The previous prime is 425541517. The next prime is 425541547. The reversal of 425541520 is 25145524.

It can be written as a sum of positive squares in 2 ways, for example, as 186158736 + 239382784 = 13644^2 + 15472^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2659555 + ... + 2659714.

It is an arithmetic number, because the mean of its divisors is an integer number (49469211).

Almost surely, 2^425541520 is an apocalyptic number.

425541520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425541520 is an abundant number, since it is smaller than the sum of its proper divisors (563842700).

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

425541520 is a wasteful number, since it uses less digits than its factorization.

425541520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5319282 (or 5319276 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 425541520 is about 20628.6577362658. The cubic root of 425541520 is about 752.1664883377.

The spelling of 425541520 in words is "four hundred twenty-five million, five hundred forty-one thousand, five hundred twenty".