25555667250053 has 4 divisors (see below), whose sum is σ = 25555812136800. Its totient is φ = 25555522363308.

The previous prime is 25555667250007. The next prime is 25555667250059. The reversal of 25555667250053 is 35005276655552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25555667250053 - 2³² = 25551372282757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25555667250059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72178475 + ... + 72531672.

It is an arithmetic number, because the mean of its divisors is an integer number (6388953034200).

Almost surely, 2^{25555667250053} is an apocalyptic number.

It is an amenable number.

25555667250053 is a deficient number, since it is larger than the sum of its proper divisors (144886747).

25555667250053 is a wasteful number, since it uses less digits than its factorization.

25555667250053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144886746.

The product of its (nonzero) digits is 47250000, while the sum is 56.

The spelling of 25555667250053 in words is "twenty-five trillion, five hundred fifty-five billion, six hundred sixty-seven million, two hundred fifty thousand, fifty-three".