25142886 has 20 divisors (see below), whose sum is σ = 56339052. Its totient is φ = 8380908.

The previous prime is 25142863. The next prime is 25142893. The reversal of 25142886 is 68824152.

It is a super-3 number, since 3×25142886³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25142886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 77440 + ... + 77763.

Almost surely, 2^25142886 is an apocalyptic number.

25142886 is an abundant number, since it is smaller than the sum of its proper divisors (31196166).

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

25142886 is a wasteful number, since it uses less digits than its factorization.

25142886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155217 (or 155208 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 25142886 is about 5014.2682417278. The cubic root of 25142886 is about 292.9577841464.

The spelling of 25142886 in words is "twenty-five million, one hundred forty-two thousand, eight hundred eighty-six".