25142225351 has 4 divisors (see below), whose sum is σ = 25207871232. Its totient is φ = 25076579472.

The previous prime is 25142225321. The next prime is 25142225387. The reversal of 25142225351 is 15352224152.

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 25142225351 - 2²² = 25138031047 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 (25142225321) 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, 32822366 + ... + 32823131.

It is an arithmetic number, because the mean of its divisors is an integer number (6301967808).

Almost surely, 2^25142225351 is an apocalyptic number.

25142225351 is a deficient number, since it is larger than the sum of its proper divisors (65645881).

25142225351 is an equidigital number, since it uses as much as digits as its factorization.

25142225351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65645880.

The product of its digits is 24000, while the sum is 32.

The spelling of 25142225351 in words is "twenty-five billion, one hundred forty-two million, two hundred twenty-five thousand, three hundred fifty-one".