25157012 has 6 divisors (see below), whose sum is σ = 44024778. Its totient is φ = 12578504.

The previous prime is 25156987. The next prime is 25157017. The reversal of 25157012 is 21075152.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15335056 + 9821956 = 3916^2 + 3134^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25157017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3144623 + ... + 3144630.

It is an arithmetic number, because the mean of its divisors is an integer number (7337463).

Almost surely, 2^25157012 is an apocalyptic number.

It is an amenable number.

25157012 is a deficient number, since it is larger than the sum of its proper divisors (18867766).

25157012 is a wasteful number, since it uses less digits than its factorization.

25157012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6289257 (or 6289255 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 25157012 is about 5015.6766243449. The cubic root of 25157012 is about 293.0126379248.

The spelling of 25157012 in words is "twenty-five million, one hundred fifty-seven thousand, twelve".