25318007860 has 48 divisors (see below), whose sum is σ = 57088281600. Its totient is φ = 9397230080.

The previous prime is 25318007831. The next prime is 25318007863. The reversal of 25318007860 is 6870081352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25318007863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500260 + ... + 548539.

It is an arithmetic number, because the mean of its divisors is an integer number (1189339200).

Almost surely, 2^25318007860 is an apocalyptic number.

25318007860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25318007860 is an abundant number, since it is smaller than the sum of its proper divisors (31770273740).

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

25318007860 is a wasteful number, since it uses less digits than its factorization.

25318007860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048896 (or 1048894 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 25318007860 in words is "twenty-five billion, three hundred eighteen million, seven thousand, eight hundred sixty".