14252532421 has 8 divisors (see below), whose sum is σ = 14283005400. Its totient is φ = 14222092800.

The previous prime is 14252532391. The next prime is 14252532431. The reversal of 14252532421 is 12423525241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1325979396 + 12926553025 = 36414^2 + 113695^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14252532421 - 2²³ = 14244143813 is a prime.

It is a super-2 number, since 2×14252532421² (a number of 21 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 (14252532431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964275 + ... + 978943.

It is an arithmetic number, because the mean of its divisors is an integer number (1785375675).

Almost surely, 2^14252532421 is an apocalyptic number.

It is an amenable number.

14252532421 is a deficient number, since it is larger than the sum of its proper divisors (30472979).

14252532421 is a wasteful number, since it uses less digits than its factorization.

14252532421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16679.

The product of its digits is 19200, while the sum is 31.

The spelling of 14252532421 in words is "fourteen billion, two hundred fifty-two million, five hundred thirty-two thousand, four hundred twenty-one".