25575300780 has 96 divisors (see below), whose sum is σ = 72047635968. Its totient is φ = 6778598400.

The previous prime is 25575300761. The next prime is 25575300811. The reversal of 25575300780 is 8700357552.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9122859 + ... + 9125661.

It is an arithmetic number, because the mean of its divisors is an integer number (750496208).

Almost surely, 2^25575300780 is an apocalyptic number.

25575300780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25575300780 is an abundant number, since it is smaller than the sum of its proper divisors (46472335188).

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

25575300780 is a wasteful number, since it uses less digits than its factorization.

25575300780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687 (or 3685 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 42.

The spelling of 25575300780 in words is "twenty-five billion, five hundred seventy-five million, three hundred thousand, seven hundred eighty".