15222375 has 48 divisors (see below), whose sum is σ = 31377216. Its totient is φ = 6955200.

The previous prime is 15222373. The next prime is 15222377. The reversal of 15222375 is 57322251.

15222375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15222373) and next prime (15222377).

It is not a de Polignac number, because 15222375 - 2¹ = 15222373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15222371) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6909 + ... + 8841.

It is an arithmetic number, because the mean of its divisors is an integer number (653692).

Almost surely, 2^15222375 is an apocalyptic number.

15222375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15222375 is an abundant number, since it is smaller than the sum of its proper divisors (16154841).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15222375 is a wasteful number, since it uses less digits than its factorization.

15222375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961 (or 1948 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 15222375 is about 3901.5862158871. The cubic root of 15222375 is about 247.8339538432.

The spelling of 15222375 in words is "fifteen million, two hundred twenty-two thousand, three hundred seventy-five".