25760780 has 24 divisors (see below), whose sum is σ = 57280608. Its totient is φ = 9698048.

The previous prime is 25760773. The next prime is 25760837. The reversal of 25760780 is 8706752.

It is a self number, because there is not a number n which added to its sum of digits gives 25760780.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37544 + ... + 38223.

It is an arithmetic number, because the mean of its divisors is an integer number (2386692).

Almost surely, 2^25760780 is an apocalyptic number.

25760780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25760780 is an abundant number, since it is smaller than the sum of its proper divisors (31519828).

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

25760780 is a wasteful number, since it uses less digits than its factorization.

25760780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75793 (or 75791 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 25760780 is about 5075.5078563628. The cubic root of 25760780 is about 295.3382312247.

The spelling of 25760780 in words is "twenty-five million, seven hundred sixty thousand, seven hundred eighty".