25312102 has 4 divisors (see below), whose sum is σ = 37968156. Its totient is φ = 12656050.

The previous prime is 25312097. The next prime is 25312103. The reversal of 25312102 is 20121352.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25312103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6328024 + ... + 6328027.

It is an arithmetic number, because the mean of its divisors is an integer number (9492039).

Almost surely, 2^25312102 is an apocalyptic number.

25312102 is a deficient number, since it is larger than the sum of its proper divisors (12656054).

25312102 is a wasteful number, since it uses less digits than its factorization.

25312102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12656053.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 25312102 is about 5031.1133956610. The cubic root of 25312102 is about 293.6135341983.

Adding to 25312102 its reverse (20121352), we get a palindrome (45433454).

The spelling of 25312102 in words is "twenty-five million, three hundred twelve thousand, one hundred two".