402560125 has 48 divisors (see below), whose sum is σ = 579144384. Its totient is φ = 277020000.

The previous prime is 402560117. The next prime is 402560129. The reversal of 402560125 is 521065204.

It is not a de Polignac number, because 402560125 - 2³ = 402560117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402560125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402560129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 495970 + ... + 496780.

It is an arithmetic number, because the mean of its divisors is an integer number (12065508).

Almost surely, 2^402560125 is an apocalyptic number.

It is an amenable number.

402560125 is a deficient number, since it is larger than the sum of its proper divisors (176584259).

402560125 is a wasteful number, since it uses less digits than its factorization.

402560125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 402560125 is about 20063.9010414226. The cubic root of 402560125 is about 738.3748881772.

The spelling of 402560125 in words is "four hundred two million, five hundred sixty thousand, one hundred twenty-five".