25566142 has 12 divisors (see below), whose sum is σ = 44610480. Its totient is φ = 10956876.

The previous prime is 25566119. The next prime is 25566157. The reversal of 25566142 is 24166552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130342 + ... + 130537.

It is an arithmetic number, because the mean of its divisors is an integer number (3717540).

Almost surely, 2^25566142 is an apocalyptic number.

25566142 is a deficient number, since it is larger than the sum of its proper divisors (19044338).

25566142 is a wasteful number, since it uses less digits than its factorization.

25566142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260895 (or 260888 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 25566142 is about 5056.2972618310. The cubic root of 25566142 is about 294.5925313818.

The spelling of 25566142 in words is "twenty-five million, five hundred sixty-six thousand, one hundred forty-two".