25445960 has 16 divisors (see below), whose sum is σ = 57253500. Its totient is φ = 10178368.

The previous prime is 25445951. The next prime is 25445977. The reversal of 25445960 is 6954452.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25381444 + 64516 = 5038^2 + 254^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25445960.

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, 318035 + ... + 318114.

Almost surely, 2^25445960 is an apocalyptic number.

25445960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25445960 is an abundant number, since it is smaller than the sum of its proper divisors (31807540).

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

25445960 is a wasteful number, since it uses less digits than its factorization.

25445960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636160 (or 636156 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 25445960 is about 5044.3988739988. The cubic root of 25445960 is about 294.1301967037.

The spelling of 25445960 in words is "twenty-five million, four hundred forty-five thousand, nine hundred sixty".