25305250423 has 4 divisors (see below), whose sum is σ = 25466430520. Its totient is φ = 25144070328.

The previous prime is 25305250349. The next prime is 25305250441. The reversal of 25305250423 is 32405250352.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25305250423 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 (25305250723) 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, 80589813 + ... + 80590126.

It is an arithmetic number, because the mean of its divisors is an integer number (6366607630).

Almost surely, 2^25305250423 is an apocalyptic number.

25305250423 is a deficient number, since it is larger than the sum of its proper divisors (161180097).

25305250423 is a wasteful number, since it uses less digits than its factorization.

25305250423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161180096.

The product of its (nonzero) digits is 36000, while the sum is 31.

The spelling of 25305250423 in words is "twenty-five billion, three hundred five million, two hundred fifty thousand, four hundred twenty-three".