25230102450402 has 32 divisors (see below), whose sum is σ = 51634894006080. Its totient is φ = 8214261693120.

The previous prime is 25230102450391. The next prime is 25230102450437. The reversal of 25230102450402 is 20405420103252.

It is a self number, because there is not a number n which added to its sum of digits gives 25230102450402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10248952 + ... + 12470012.

It is an arithmetic number, because the mean of its divisors is an integer number (1613590437690).

Almost surely, 2^{25230102450402} is an apocalyptic number.

25230102450402 is an abundant number, since it is smaller than the sum of its proper divisors (26404791555678).

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

25230102450402 is a wasteful number, since it uses less digits than its factorization.

25230102450402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265138.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 25230102450402 its reverse (20405420103252), we get a palindrome (45635522553654).

The spelling of 25230102450402 in words is "twenty-five trillion, two hundred thirty billion, one hundred two million, four hundred fifty thousand, four hundred two".