15052222 has 4 divisors (see below), whose sum is σ = 22578336. Its totient is φ = 7526110.

The previous prime is 15052217. The next prime is 15052231. The reversal of 15052222 is 22225051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22225051 = 449 ⋅49499.

It is a self number, because there is not a number n which added to its sum of digits gives 15052222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3763054 + ... + 3763057.

It is an arithmetic number, because the mean of its divisors is an integer number (5644584).

Almost surely, 2^15052222 is an apocalyptic number.

15052222 is a deficient number, since it is larger than the sum of its proper divisors (7526114).

15052222 is an equidigital number, since it uses as much as digits as its factorization.

15052222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7526113.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 15052222 is about 3879.7193197447. The cubic root of 15052222 is about 246.9070771117.

Adding to 15052222 its reverse (22225051), we get a palindrome (37277273).

It can be divided in two parts, 150522 and 22, that added together give a square (150544 = 388²).

The spelling of 15052222 in words is "fifteen million, fifty-two thousand, two hundred twenty-two".