25536263552 has 16 divisors (see below), whose sum is σ = 50873025300. Its totient is φ = 12768131712.

The previous prime is 25536263551. The next prime is 25536263563.

25536263552 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25536263551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99750902 + ... + 99751157.

Almost surely, 2^25536263552 is an apocalyptic number.

It is an amenable number.

25536263552 is a deficient number, since it is larger than the sum of its proper divisors (25336761748).

25536263552 is an equidigital number, since it uses as much as digits as its factorization.

25536263552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199502073 (or 199502061 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 44.

Subtracting from 25536263552 its product of digits (1620000), we obtain a palindrome (25534643552).

The spelling of 25536263552 in words is "twenty-five billion, five hundred thirty-six million, two hundred sixty-three thousand, five hundred fifty-two".