15325532423 has 4 divisors (see below), whose sum is σ = 15739736040. Its totient is φ = 14911328808.

The previous prime is 15325532389. The next prime is 15325532447. The reversal of 15325532423 is 32423552351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32423552351 = 49711 ⋅652241.

It is a cyclic number.

It is not a de Polignac number, because 15325532423 - 2⁶ = 15325532359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15325532483) 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, 207101753 + ... + 207101826.

It is an arithmetic number, because the mean of its divisors is an integer number (3934934010).

Almost surely, 2^15325532423 is an apocalyptic number.

15325532423 is a deficient number, since it is larger than the sum of its proper divisors (414203617).

15325532423 is an equidigital number, since it uses as much as digits as its factorization.

15325532423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414203616.

The product of its digits is 108000, while the sum is 35.

The spelling of 15325532423 in words is "fifteen billion, three hundred twenty-five million, five hundred thirty-two thousand, four hundred twenty-three".