25552552553 has 16 divisors (see below), whose sum is σ = 29347995840. Its totient is φ = 22002969600.

The previous prime is 25552552547. The next prime is 25552552579. The reversal of 25552552553 is 35525525552.

It is a cyclic number.

It is not a de Polignac number, because 25552552553 - 2⁴ = 25552552537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25552552513) 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, 2025401 + ... + 2037977.

It is an arithmetic number, because the mean of its divisors is an integer number (1834249740).

Almost surely, 2^25552552553 is an apocalyptic number.

It is an amenable number.

25552552553 is a deficient number, since it is larger than the sum of its proper divisors (3795443287).

25552552553 is a wasteful number, since it uses less digits than its factorization.

25552552553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22328.

The product of its digits is 1875000, while the sum is 44.

It can be divided in two parts, 2 and 5552552553, that added together give a palindrome (5552552555).

The spelling of 25552552553 in words is "twenty-five billion, five hundred fifty-two million, five hundred fifty-two thousand, five hundred fifty-three".