25251615056145 has 16 divisors (see below), whose sum is σ = 40402651969152. Its totient is φ = 13467505403520.

The previous prime is 25251615056123. The next prime is 25251615056159. The reversal of 25251615056145 is 54165051615252.

It is not a de Polignac number, because 25251615056145 - 2²⁶ = 25251547947281 is a prime.

It is a super-2 number, since 2×25251615056145² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25251615056094 and 25251615056103.

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, 11786749 + ... + 13763381.

It is an arithmetic number, because the mean of its divisors is an integer number (2525165748072).

Almost surely, 2^{25251615056145} is an apocalyptic number.

It is an amenable number.

25251615056145 is a deficient number, since it is larger than the sum of its proper divisors (15151036913007).

25251615056145 is a wasteful number, since it uses less digits than its factorization.

25251615056145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828312.

The product of its (nonzero) digits is 1800000, while the sum is 48.

The spelling of 25251615056145 in words is "twenty-five trillion, two hundred fifty-one billion, six hundred fifteen million, fifty-six thousand, one hundred forty-five".