25776020 has 24 divisors (see below), whose sum is σ = 55153224. Its totient is φ = 10115456.

The previous prime is 25776017. The next prime is 25776043. The reversal of 25776020 is 2067752.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6574096 + 19201924 = 2564^2 + 4382^2 .

It is a congruent number.

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, 11099 + ... + 13218.

It is an arithmetic number, because the mean of its divisors is an integer number (2298051).

Almost surely, 2^25776020 is an apocalyptic number.

25776020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25776020 is an abundant number, since it is smaller than the sum of its proper divisors (29377204).

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

25776020 is a wasteful number, since it uses less digits than its factorization.

25776020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24379 (or 24377 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 25776020 is about 5077.0089619775. The cubic root of 25776020 is about 295.3964601467.

The spelling of 25776020 in words is "twenty-five million, seven hundred seventy-six thousand, twenty".