23252428249 has 4 divisors (see below), whose sum is σ = 24620218164. Its totient is φ = 21884638336.

The previous prime is 23252428229. The next prime is 23252428357. The reversal of 23252428249 is 94282425232.

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 12643428249 + 10609000000 = 112443^2 + 103000^2 .

It is a cyclic number.

It is not a de Polignac number, because 23252428249 - 2⁵ = 23252428217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23252428229) 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, 683894932 + ... + 683894965.

It is an arithmetic number, because the mean of its divisors is an integer number (6155054541).

Almost surely, 2^23252428249 is an apocalyptic number.

It is an amenable number.

23252428249 is a deficient number, since it is larger than the sum of its proper divisors (1367789915).

23252428249 is a wasteful number, since it uses less digits than its factorization.

23252428249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367789914.

The product of its digits is 552960, while the sum is 43.

The spelling of 23252428249 in words is "twenty-three billion, two hundred fifty-two million, four hundred twenty-eight thousand, two hundred forty-nine".