25231603080 has 128 divisors (see below), whose sum is σ = 78753300480. Its totient is φ = 6459989760.

The previous prime is 25231603063. The next prime is 25231603087. The reversal of 25231603080 is 8030613252.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (25231603087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 445737 + ... + 499143.

It is an arithmetic number, because the mean of its divisors is an integer number (615260160).

Almost surely, 2^25231603080 is an apocalyptic number.

25231603080 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 25231603080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39376650240).

25231603080 is an abundant number, since it is smaller than the sum of its proper divisors (53521697400).

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

25231603080 is a wasteful number, since it uses less digits than its factorization.

25231603080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53579 (or 53575 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 25231603080 in words is "twenty-five billion, two hundred thirty-one million, six hundred three thousand, eighty".