15220275 has 48 divisors (see below), whose sum is σ = 29355264. Its totient is φ = 6814080.

The previous prime is 15220267. The next prime is 15220313. The reversal of 15220275 is 57202251.

It is not a de Polignac number, because 15220275 - 2³ = 15220267 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 27552 + ... + 28098.

It is an arithmetic number, because the mean of its divisors is an integer number (611568).

Almost surely, 2^15220275 is an apocalyptic number.

15220275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15220275 is a deficient number, since it is larger than the sum of its proper divisors (14134989).

15220275 is a wasteful number, since it uses less digits than its factorization.

15220275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 15220275 is about 3901.3170852931. The cubic root of 15220275 is about 247.8225566896.

The spelling of 15220275 in words is "fifteen million, two hundred twenty thousand, two hundred seventy-five".