25613164460553 has 16 divisors (see below), whose sum is σ = 35636157121536. Its totient is φ = 16332826138640.

The previous prime is 25613164460531. The next prime is 25613164460563. The reversal of 25613164460553 is 35506446131652.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25613164460553 - 2¹² = 25613164456457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25613164460496 and 25613164460505.

It is not an unprimeable number, because it can be changed into a prime (25613164460503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3255418 + ... + 7862828.

It is an arithmetic number, because the mean of its divisors is an integer number (2227259820096).

Almost surely, 2^{25613164460553} is an apocalyptic number.

25613164460553 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25613164460553 is a deficient number, since it is larger than the sum of its proper divisors (10022992660983).

25613164460553 is a wasteful number, since it uses less digits than its factorization.

25613164460553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688004.

The product of its (nonzero) digits is 7776000, while the sum is 51.

The spelling of 25613164460553 in words is "twenty-five trillion, six hundred thirteen billion, one hundred sixty-four million, four hundred sixty thousand, five hundred fifty-three".