25508560360 has 24 divisors (see below), whose sum is σ = 57396533670. Its totient is φ = 10203020096.

The previous prime is 25508560339. The next prime is 25508560373. The reversal of 25508560360 is 6306580552.

It can be written as a sum of positive squares in 3 ways, for example, as 25215534436 + 293025924 = 158794^2 + 17118^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 997494 + ... + 1022746.

Almost surely, 2^25508560360 is an apocalyptic number.

25508560360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25508560360 is an abundant number, since it is smaller than the sum of its proper divisors (31887973310).

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

25508560360 is an frugal number, since it uses more digits than its factorization.

25508560360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50517 (or 25260 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

Multiplying 25508560360 by its sum of digits (40), we get a square (1020342414400 = 1010120²).

25508560360 divided by its sum of digits (40) gives a square (637714009 = 25253²).

The spelling of 25508560360 in words is "twenty-five billion, five hundred eight million, five hundred sixty thousand, three hundred sixty".