25423693753 has 4 divisors (see below), whose sum is σ = 25424086500. Its totient is φ = 25423301008.

The previous prime is 25423693739. The next prime is 25423693829. The reversal of 25423693753 is 35739632452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10859307264 + 14564386489 = 104208^2 + 120683^2 .

It is a cyclic number.

It is not a de Polignac number, because 25423693753 - 2²⁹ = 24886822841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25423693697 and 25423693706.

It is not an unprimeable number, because it can be changed into a prime (25423693723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73750 + ... + 237247.

It is an arithmetic number, because the mean of its divisors is an integer number (6356021625).

Almost surely, 2^25423693753 is an apocalyptic number.

It is an amenable number.

25423693753 is a deficient number, since it is larger than the sum of its proper divisors (392747).

25423693753 is an equidigital number, since it uses as much as digits as its factorization.

25423693753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392746.

The product of its digits is 4082400, while the sum is 49.

The spelling of 25423693753 in words is "twenty-five billion, four hundred twenty-three million, six hundred ninety-three thousand, seven hundred fifty-three".