25055321251 has 4 divisors (see below), whose sum is σ = 25055762400. Its totient is φ = 25054880104.

The previous prime is 25055321243. The next prime is 25055321329. The reversal of 25055321251 is 15212355052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25055321251 - 2³ = 25055321243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25055321051) 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, 120136 + ... + 254053.

It is an arithmetic number, because the mean of its divisors is an integer number (6263940600).

Almost surely, 2^25055321251 is an apocalyptic number.

25055321251 is a deficient number, since it is larger than the sum of its proper divisors (441149).

25055321251 is an equidigital number, since it uses as much as digits as its factorization.

25055321251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441148.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 25055321251 in words is "twenty-five billion, fifty-five million, three hundred twenty-one thousand, two hundred fifty-one".