15325343421 has 8 divisors (see below), whose sum is σ = 20434411200. Its totient is φ = 10216585632.

The previous prime is 15325343401. The next prime is 15325343441. The reversal of 15325343421 is 12434352351.

It is an interprime number because it is at equal distance from previous prime (15325343401) and next prime (15325343441).

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

It is not a de Polignac number, because 15325343421 - 2¹⁰ = 15325342397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15325343401) 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, 88905 + ... + 196353.

It is an arithmetic number, because the mean of its divisors is an integer number (2554301400).

Almost surely, 2^15325343421 is an apocalyptic number.

It is an amenable number.

15325343421 is a deficient number, since it is larger than the sum of its proper divisors (5109067779).

15325343421 is a wasteful number, since it uses less digits than its factorization.

15325343421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154995.

The product of its digits is 43200, while the sum is 33.

Adding to 15325343421 its reverse (12434352351), we get a palindrome (27759695772).

The spelling of 15325343421 in words is "fifteen billion, three hundred twenty-five million, three hundred forty-three thousand, four hundred twenty-one".