23252021439 has 16 divisors (see below), whose sum is σ = 32890911840. Its totient is φ = 14560824320.

The previous prime is 23252021437. The next prime is 23252021453. The reversal of 23252021439 is 93412025232.

It is a cyclic number.

It is not a de Polignac number, because 23252021439 - 2¹ = 23252021437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23252021431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421902 + ... + 473819.

It is an arithmetic number, because the mean of its divisors is an integer number (2055681990).

Almost surely, 2^23252021439 is an apocalyptic number.

23252021439 is a deficient number, since it is larger than the sum of its proper divisors (9638890401).

23252021439 is a wasteful number, since it uses less digits than its factorization.

23252021439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896250.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 23252021439 in words is "twenty-three billion, two hundred fifty-two million, twenty-one thousand, four hundred thirty-nine".