25900560 has 200 divisors, whose sum is σ = 102987456. Its totient is φ = 5909760.

The previous prime is 25900559. The next prime is 25900573. The reversal of 25900560 is 6500952.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 45075 + ... + 45645.

Almost surely, 2^25900560 is an apocalyptic number.

25900560 is a gapful number since it is divisible by the number (20) 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 25900560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51493728).

25900560 is an abundant number, since it is smaller than the sum of its proper divisors (77086896).

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

25900560 is a wasteful number, since it uses less digits than its factorization.

25900560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 25900560 is about 5089.2592781268. The cubic root of 25900560 is about 295.8714440531.

The spelling of 25900560 in words is "twenty-five million, nine hundred thousand, five hundred sixty".