25122403983 has 4 divisors (see below), whose sum is σ = 33496538648. Its totient is φ = 16748269320.

The previous prime is 25122403961. The next prime is 25122403987. The reversal of 25122403983 is 38930422152.

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

It is not a de Polignac number, because 25122403983 - 2¹³ = 25122395791 is a prime.

It is a super-2 number, since 2×25122403983² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25122403987) 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, 4187067328 + ... + 4187067333.

It is an arithmetic number, because the mean of its divisors is an integer number (8374134662).

Almost surely, 2^25122403983 is an apocalyptic number.

25122403983 is a deficient number, since it is larger than the sum of its proper divisors (8374134665).

25122403983 is an equidigital number, since it uses as much as digits as its factorization.

25122403983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8374134664.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 25122403983 in words is "twenty-five billion, one hundred twenty-two million, four hundred three thousand, nine hundred eighty-three".