25273559923 has 4 divisors (see below), whose sum is σ = 25274233440. Its totient is φ = 25272886408.

The previous prime is 25273559903. The next prime is 25273559947. The reversal of 25273559923 is 32995537252.

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 25273559923 - 2⁵ = 25273559891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25273559903) 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, 276928 + ... + 356701.

It is an arithmetic number, because the mean of its divisors is an integer number (6318558360).

Almost surely, 2^25273559923 is an apocalyptic number.

25273559923 is a deficient number, since it is larger than the sum of its proper divisors (673517).

25273559923 is an equidigital number, since it uses as much as digits as its factorization.

25273559923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673516.

The product of its digits is 5103000, while the sum is 52.

The spelling of 25273559923 in words is "twenty-five billion, two hundred seventy-three million, five hundred fifty-nine thousand, nine hundred twenty-three".