25129252 has 6 divisors (see below), whose sum is σ = 43976198. Its totient is φ = 12564624.

The previous prime is 25129249. The next prime is 25129259. The reversal of 25129252 is 25292152.

It can be written as a sum of positive squares in only one way, i.e., 20575296 + 4553956 = 4536^2 + 2134^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25129252.

It is not an unprimeable number, because it can be changed into a prime (25129259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3141153 + ... + 3141160.

Almost surely, 2^25129252 is an apocalyptic number.

It is an amenable number.

25129252 is a deficient number, since it is larger than the sum of its proper divisors (18846946).

25129252 is a wasteful number, since it uses less digits than its factorization.

25129252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6282317 (or 6282315 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 25129252 is about 5012.9085369673. The cubic root of 25129252 is about 292.9048214036.

The spelling of 25129252 in words is "twenty-five million, one hundred twenty-nine thousand, two hundred fifty-two".