25766380 has 24 divisors (see below), whose sum is σ = 54211248. Its totient is φ = 10287168.

The previous prime is 25766353. The next prime is 25766431. The reversal of 25766380 is 8366752.

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, 14922 + ... + 16558.

It is an arithmetic number, because the mean of its divisors is an integer number (2258802).

Almost surely, 2^25766380 is an apocalyptic number.

25766380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25766380 is an abundant number, since it is smaller than the sum of its proper divisors (28444868).

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

25766380 is a wasteful number, since it uses less digits than its factorization.

25766380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433 (or 2431 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 25766380 is about 5076.0594953172. The cubic root of 25766380 is about 295.3596303473.

The spelling of 25766380 in words is "twenty-five million, seven hundred sixty-six thousand, three hundred eighty".