25512066 has 12 divisors (see below), whose sum is σ = 55276182. Its totient is φ = 8504016.

The previous prime is 25512017. The next prime is 25512077. The reversal of 25512066 is 66021552.

It can be written as a sum of positive squares in only one way, i.e., 22838841 + 2673225 = 4779^2 + 1635^2 .

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, 708651 + ... + 708686.

Almost surely, 2^25512066 is an apocalyptic number.

25512066 is an abundant number, since it is smaller than the sum of its proper divisors (29764116).

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

25512066 is a wasteful number, since it uses less digits than its factorization.

25512066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417345 (or 1417342 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 25512066 is about 5050.9470399124. The cubic root of 25512066 is about 294.3846831710.

It can be divided in two parts, 255 and 12066, that added together give a palindrome (12321).

The spelling of 25512066 in words is "twenty-five million, five hundred twelve thousand, sixty-six".