15252662217 has 16 divisors (see below), whose sum is σ = 21919322880. Its totient is φ = 9378511872.

The previous prime is 15252662213. The next prime is 15252662219. The reversal of 15252662217 is 71226625251.

It is not a de Polignac number, because 15252662217 - 2² = 15252662213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (15252662213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113217 + ... + 208142.

It is an arithmetic number, because the mean of its divisors is an integer number (1369957680).

Almost surely, 2^15252662217 is an apocalyptic number.

It is an amenable number.

15252662217 is a deficient number, since it is larger than the sum of its proper divisors (6666660663).

15252662217 is a wasteful number, since it uses less digits than its factorization.

15252662217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322592.

The product of its digits is 100800, while the sum is 39.

The spelling of 15252662217 in words is "fifteen billion, two hundred fifty-two million, six hundred sixty-two thousand, two hundred seventeen".