25025299316490 has 128 divisors (see below), whose sum is σ = 65608500787200. Its totient is φ = 6058621981440.

The previous prime is 25025299316473. The next prime is 25025299316503. The reversal of 25025299316490 is 9461399252052.

It is a happy number.

It is a super-2 number, since 2×25025299316490² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25025299316490.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 978340521 + ... + 978366099.

It is an arithmetic number, because the mean of its divisors is an integer number (512566412400).

Almost surely, 2^{25025299316490} is an apocalyptic number.

25025299316490 is an abundant number, since it is smaller than the sum of its proper divisors (40583201470710).

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

25025299316490 is a wasteful number, since it uses less digits than its factorization.

25025299316490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29452.

The product of its (nonzero) digits is 10497600, while the sum is 57.

The spelling of 25025299316490 in words is "twenty-five trillion, twenty-five billion, two hundred ninety-nine million, three hundred sixteen thousand, four hundred ninety".