25230013173730 has 64 divisors (see below), whose sum is σ = 48285827516160. Its totient is φ = 9470466793216.

The previous prime is 25230013173721. The next prime is 25230013173749. The reversal of 25230013173730 is 3737131003252.

It is a super-2 number, since 2×25230013173730² (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 25230013173730.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214155981 + ... + 214273759.

It is an arithmetic number, because the mean of its divisors is an integer number (754466054940).

Almost surely, 2^{25230013173730} is an apocalyptic number.

25230013173730 is a deficient number, since it is larger than the sum of its proper divisors (23055814342430).

25230013173730 is a wasteful number, since it uses less digits than its factorization.

25230013173730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135435.

The product of its (nonzero) digits is 79380, while the sum is 37.

Adding to 25230013173730 its reverse (3737131003252), we get a palindrome (28967144176982).

The spelling of 25230013173730 in words is "twenty-five trillion, two hundred thirty billion, thirteen million, one hundred seventy-three thousand, seven hundred thirty".