25120223999 has 4 divisors (see below), whose sum is σ = 27052548936. Its totient is φ = 23187899064.

The previous prime is 25120223987. The next prime is 25120224037. The reversal of 25120223999 is 99932202152.

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 25120223999 - 2²⁸ = 24851788543 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 (25120253999) 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, 966162449 + ... + 966162474.

It is an arithmetic number, because the mean of its divisors is an integer number (6763137234).

Almost surely, 2^25120223999 is an apocalyptic number.

25120223999 is a deficient number, since it is larger than the sum of its proper divisors (1932324937).

25120223999 is a wasteful number, since it uses less digits than its factorization.

25120223999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932324936.

The product of its (nonzero) digits is 174960, while the sum is 44.

The spelling of 25120223999 in words is "twenty-five billion, one hundred twenty million, two hundred twenty-three thousand, nine hundred ninety-nine".