15050050021 has 8 divisors (see below), whose sum is σ = 15138313344. Its totient is φ = 14961906960.

The previous prime is 15050050007. The next prime is 15050050027. The reversal of 15050050021 is 12005005051.

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 15050050021 - 2¹¹ = 15050047973 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 (15050050027) 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, 227376 + ... + 286006.

It is an arithmetic number, because the mean of its divisors is an integer number (1892289168).

Almost surely, 2^15050050021 is an apocalyptic number.

It is an amenable number.

15050050021 is a deficient number, since it is larger than the sum of its proper divisors (88263323).

15050050021 is a wasteful number, since it uses less digits than its factorization.

15050050021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60131.

The product of its (nonzero) digits is 250, while the sum is 19.

Adding to 15050050021 its reverse (12005005051), we get a palindrome (27055055072).

The spelling of 15050050021 in words is "fifteen billion, fifty million, fifty thousand, twenty-one".