15120225523 has 8 divisors (see below), whose sum is σ = 16844814000. Its totient is φ = 13475850528.

The previous prime is 15120225499. The next prime is 15120225551. The reversal of 15120225523 is 32552202151.

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 15120225523 - 2²⁵ = 15086671091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15120225491 and 15120225500.

It is not an unprimeable number, because it can be changed into a prime (15120225623) 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, 20052973 + ... + 20053726.

It is an arithmetic number, because the mean of its divisors is an integer number (2105601750).

Almost surely, 2^15120225523 is an apocalyptic number.

15120225523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15120225523 is a deficient number, since it is larger than the sum of its proper divisors (1724588477).

15120225523 is a wasteful number, since it uses less digits than its factorization.

15120225523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40106741.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 15120225523 its reverse (32552202151), we get a palindrome (47672427674).

The spelling of 15120225523 in words is "fifteen billion, one hundred twenty million, two hundred twenty-five thousand, five hundred twenty-three".