25500078080 has 52 divisors (see below), whose sum is σ = 61192765812. Its totient is φ = 10200023040.

The previous prime is 25500078041. The next prime is 25500078119. The reversal of 25500078080 is 8087000552.

It is an interprime number because it is at equal distance from previous prime (25500078041) and next prime (25500078119).

It can be written as a sum of positive squares in 2 ways, for example, as 4170059776 + 21330018304 = 64576^2 + 146048^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25500078080.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602081 + ... + 643040.

Almost surely, 2^25500078080 is an apocalyptic number.

25500078080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25500078080 is an abundant number, since it is smaller than the sum of its proper divisors (35692687732).

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

25500078080 is an equidigital number, since it uses as much as digits as its factorization.

25500078080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245150 (or 1245128 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 35.

The spelling of 25500078080 in words is "twenty-five billion, five hundred million, seventy-eight thousand, eighty".