25780674 has 16 divisors (see below), whose sum is σ = 52407360. Its totient is φ = 8452560.

The previous prime is 25780673. The next prime is 25780697. The reversal of 25780674 is 47608752.

It is not an unprimeable number, because it can be changed into a prime (25780673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34854 + ... + 35585.

It is an arithmetic number, because the mean of its divisors is an integer number (3275460).

Almost surely, 2^25780674 is an apocalyptic number.

25780674 is an abundant number, since it is smaller than the sum of its proper divisors (26626686).

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

25780674 is a wasteful number, since it uses less digits than its factorization.

25780674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70505.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 25780674 is about 5077.4672820216. The cubic root of 25780674 is about 295.4142375537.

The spelling of 25780674 in words is "twenty-five million, seven hundred eighty thousand, six hundred seventy-four".