15375225 has 48 divisors (see below), whose sum is σ = 27855360. Its totient is φ = 7449600.

The previous prime is 15375221. The next prime is 15375229. The reversal of 15375225 is 52257351.

15375225 = 943² + 944² + ... + 959².

It is an interprime number because it is at equal distance from previous prime (15375221) and next prime (15375229).

It is not a de Polignac number, because 15375225 - 2² = 15375221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15375192 and 15375201.

It is not an unprimeable number, because it can be changed into a prime (15375221) 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, 39331 + ... + 39719.

It is an arithmetic number, because the mean of its divisors is an integer number (580320).

Almost surely, 2^15375225 is an apocalyptic number.

15375225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15375225 is a deficient number, since it is larger than the sum of its proper divisors (12480135).

15375225 is a wasteful number, since it uses less digits than its factorization.

15375225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 445 counting only the distinct ones).

The product of its digits is 10500, while the sum is 30.

The square root of 15375225 is about 3921.1254761867. The cubic root of 15375225 is about 248.6607046306.

The spelling of 15375225 in words is "fifteen million, three hundred seventy-five thousand, two hundred twenty-five".