2525278 has 16 divisors (see below), whose sum is σ = 4401504. Its totient is φ = 1064160.

The previous prime is 2525273. The next prime is 2525279. The reversal of 2525278 is 8725252.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525273) 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, 625 + ... + 2332.

It is an arithmetic number, because the mean of its divisors is an integer number (275094).

2^2525278 is an apocalyptic number.

2525278 is a deficient number, since it is larger than the sum of its proper divisors (1876226).

2525278 is a wasteful number, since it uses less digits than its factorization.

2525278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027.

The product of its digits is 11200, while the sum is 31.

The square root of 2525278 is about 1589.1123308313. The cubic root of 2525278 is about 136.1767813546.

The spelling of 2525278 in words is "two million, five hundred twenty-five thousand, two hundred seventy-eight".