2525978 has 16 divisors (see below), whose sum is σ = 4663680. Its totient is φ = 999216.

The previous prime is 2525959. The next prime is 2525981. The reversal of 2525978 is 8795252.

It is a Curzon 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, 6758 + ... + 7121.

It is an arithmetic number, because the mean of its divisors is an integer number (291480).

2^2525978 is an apocalyptic number.

2525978 is a deficient number, since it is larger than the sum of its proper divisors (2137702).

2525978 is a wasteful number, since it uses less digits than its factorization.

2525978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13901.

The product of its digits is 50400, while the sum is 38.

The square root of 2525978 is about 1589.3325643175. The cubic root of 2525978 is about 136.1893627998.

The spelling of 2525978 in words is "two million, five hundred twenty-five thousand, nine hundred seventy-eight".