25812560 has 40 divisors (see below), whose sum is σ = 60266976. Its totient is φ = 10281600.

The previous prime is 25812557. The next prime is 25812593. The reversal of 25812560 is 6521852.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24035 + ... + 25085.

Almost surely, 2^25812560 is an apocalyptic number.

25812560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25812560 is an abundant number, since it is smaller than the sum of its proper divisors (34454416).

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

25812560 is a wasteful number, since it uses less digits than its factorization.

25812560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371 (or 1365 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 25812560 is about 5080.6062630359. The cubic root of 25812560 is about 295.5359785862.

The spelling of 25812560 in words is "twenty-five million, eight hundred twelve thousand, five hundred sixty".