15222755 has 16 divisors (see below), whose sum is σ = 18719424. Its totient is φ = 11880960.

The previous prime is 15222719. The next prime is 15222761. The reversal of 15222755 is 55722251.

It is not a de Polignac number, because 15222755 - 2⁸ = 15222499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48479 + ... + 48791.

It is an arithmetic number, because the mean of its divisors is an integer number (1169964).

Almost surely, 2^15222755 is an apocalyptic number.

15222755 is a deficient number, since it is larger than the sum of its proper divisors (3496669).

15222755 is a wasteful number, since it uses less digits than its factorization.

15222755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526.

The product of its digits is 7000, while the sum is 29.

The square root of 15222755 is about 3901.6349137253. The cubic root of 15222755 is about 247.8360160733.

The spelling of 15222755 in words is "fifteen million, two hundred twenty-two thousand, seven hundred fifty-five".