25353122051 has 4 divisors (see below), whose sum is σ = 25433100672. Its totient is φ = 25273143432.

The previous prime is 25353121961. The next prime is 25353122077. The reversal of 25353122051 is 15022135352.

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 25353122051 - 2²⁶ = 25286013187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25353122551) 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, 39988835 + ... + 39989468.

It is an arithmetic number, because the mean of its divisors is an integer number (6358275168).

Almost surely, 2^25353122051 is an apocalyptic number.

25353122051 is a deficient number, since it is larger than the sum of its proper divisors (79978621).

25353122051 is an equidigital number, since it uses as much as digits as its factorization.

25353122051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79978620.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 25353122051 in words is "twenty-five billion, three hundred fifty-three million, one hundred twenty-two thousand, fifty-one".