15532020223 has 8 divisors (see below), whose sum is σ = 15605600400. Its totient is φ = 15458499648.

The previous prime is 15532020191. The next prime is 15532020253. The reversal of 15532020223 is 32202023551.

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 15532020223 - 2⁵ = 15532020191 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 (15532020253) 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, 559393 + ... + 586501.

It is an arithmetic number, because the mean of its divisors is an integer number (1950700050).

Almost surely, 2^15532020223 is an apocalyptic number.

15532020223 is a deficient number, since it is larger than the sum of its proper divisors (73580177).

15532020223 is a wasteful number, since it uses less digits than its factorization.

15532020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29801.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 15532020223 its reverse (32202023551), we get a palindrome (47734043774).

The spelling of 15532020223 in words is "fifteen billion, five hundred thirty-two million, twenty thousand, two hundred twenty-three".