25776790 has 64 divisors (see below), whose sum is σ = 53778816. Its totient is φ = 8819712.

The previous prime is 25776781. The next prime is 25776799. The reversal of 25776790 is 9767752.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25776781) and next prime (25776799).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25776799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110514 + ... + 110746.

It is an arithmetic number, because the mean of its divisors is an integer number (840294).

Almost surely, 2^25776790 is an apocalyptic number.

25776790 is an abundant number, since it is smaller than the sum of its proper divisors (28002026).

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

25776790 is a wasteful number, since it uses less digits than its factorization.

25776790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 185220, while the sum is 43.

The square root of 25776790 is about 5077.0847934617. The cubic root of 25776790 is about 295.3994015500.

The spelling of 25776790 in words is "twenty-five million, seven hundred seventy-six thousand, seven hundred ninety".