25656422 has 16 divisors (see below), whose sum is σ = 44193600. Its totient is φ = 11048040.

The previous prime is 25656409. The next prime is 25656443. The reversal of 25656422 is 22465652.

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, 30272 + ... + 31107.

It is an arithmetic number, because the mean of its divisors is an integer number (2762100).

Almost surely, 2^25656422 is an apocalyptic number.

25656422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25656422 is a deficient number, since it is larger than the sum of its proper divisors (18537178).

25656422 is a wasteful number, since it uses less digits than its factorization.

25656422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61411.

The product of its digits is 28800, while the sum is 32.

The square root of 25656422 is about 5065.2168759097. The cubic root of 25656422 is about 294.9388822921.

The spelling of 25656422 in words is "twenty-five million, six hundred fifty-six thousand, four hundred twenty-two".