25398102 has 24 divisors (see below), whose sum is σ = 53892216. Its totient is φ = 7952064.

The previous prime is 25398091. The next prime is 25398103. The reversal of 25398102 is 20189352.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25398102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25398103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50649 + ... + 51147.

It is an arithmetic number, because the mean of its divisors is an integer number (2245509).

Almost surely, 2^25398102 is an apocalyptic number.

25398102 is an abundant number, since it is smaller than the sum of its proper divisors (28494114).

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

25398102 is an equidigital number, since it uses as much as digits as its factorization.

25398102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 25398102 is about 5039.6529642427. The cubic root of 25398102 is about 293.9456838896.

The spelling of 25398102 in words is "twenty-five million, three hundred ninety-eight thousand, one hundred two".