25490190002 has 16 divisors (see below), whose sum is σ = 38450312160. Its totient is φ = 12673620288.

The previous prime is 25490189971. The next prime is 25490190017. The reversal of 25490190002 is 20009109452.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205553 + ... + 305339.

It is an arithmetic number, because the mean of its divisors is an integer number (2403144510).

Almost surely, 2^25490190002 is an apocalyptic number.

25490190002 is a deficient number, since it is larger than the sum of its proper divisors (12960122158).

25490190002 is a wasteful number, since it uses less digits than its factorization.

25490190002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100505.

The product of its (nonzero) digits is 6480, while the sum is 32.

Adding to 25490190002 its reverse (20009109452), we get a palindrome (45499299454).

The spelling of 25490190002 in words is "twenty-five billion, four hundred ninety million, one hundred ninety thousand, two".