25120878 has 16 divisors (see below), whose sum is σ = 50378880. Its totient is φ = 8350776.

The previous prime is 25120871. The next prime is 25120937. The reversal of 25120878 is 87802152.

It is a super-2 number, since 2×25120878² = 1262117022981768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25120871) 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, 3250 + ... + 7797.

It is an arithmetic number, because the mean of its divisors is an integer number (3148680).

Almost surely, 2^25120878 is an apocalyptic number.

25120878 is an abundant number, since it is smaller than the sum of its proper divisors (25258002).

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

25120878 is a wasteful number, since it uses less digits than its factorization.

25120878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11431.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 25120878 is about 5012.0732237269. The cubic root of 25120878 is about 292.8722822008.

The spelling of 25120878 in words is "twenty-five million, one hundred twenty thousand, eight hundred seventy-eight".