15500052213 has 8 divisors (see below), whose sum is σ = 20815418400. Its totient is φ = 10259027088.

The previous prime is 15500052203. The next prime is 15500052223. The reversal of 15500052213 is 31225000551.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (15500052203) and next prime (15500052223).

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

It is not a de Polignac number, because 15500052213 - 2¹² = 15500048117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15500052203) 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, 18584778 + ... + 18585611.

It is an arithmetic number, because the mean of its divisors is an integer number (2601927300).

Almost surely, 2^15500052213 is an apocalyptic number.

It is an amenable number.

15500052213 is a deficient number, since it is larger than the sum of its proper divisors (5315366187).

15500052213 is a wasteful number, since it uses less digits than its factorization.

15500052213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37170531.

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 15500052213 its reverse (31225000551), we get a palindrome (46725052764).

The spelling of 15500052213 in words is "fifteen billion, five hundred million, fifty-two thousand, two hundred thirteen".