25135332051 has 4 divisors (see below), whose sum is σ = 33513776072. Its totient is φ = 16756888032.

The previous prime is 25135332011. The next prime is 25135332059. The reversal of 25135332051 is 15023353152.

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

It is not a de Polignac number, because 25135332051 - 2⁶ = 25135331987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25135332059) 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, 4189222006 + ... + 4189222011.

It is an arithmetic number, because the mean of its divisors is an integer number (8378444018).

Almost surely, 2^25135332051 is an apocalyptic number.

25135332051 is a deficient number, since it is larger than the sum of its proper divisors (8378444021).

25135332051 is an equidigital number, since it uses as much as digits as its factorization.

25135332051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8378444020.

The product of its (nonzero) digits is 13500, while the sum is 30.

The spelling of 25135332051 in words is "twenty-five billion, one hundred thirty-five million, three hundred thirty-two thousand, fifty-one".