75515225 has 24 divisors (see below), whose sum is σ = 97493760. Its totient is φ = 57960000.

The previous prime is 75515213. The next prime is 75515227. The reversal of 75515225 is 52251557.

It is not a de Polignac number, because 75515225 - 2⁶ = 75515161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75515191 and 75515200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75515227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107375 + ... + 108075.

It is an arithmetic number, because the mean of its divisors is an integer number (4062240).

Almost surely, 2^75515225 is an apocalyptic number.

It is an amenable number.

75515225 is a deficient number, since it is larger than the sum of its proper divisors (21978535).

75515225 is a wasteful number, since it uses less digits than its factorization.

75515225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 876 counting only the distinct ones).

The product of its digits is 17500, while the sum is 32.

The square root of 75515225 is about 8689.9496546298. The cubic root of 75515225 is about 422.6798132882.

The spelling of 75515225 in words is "seventy-five million, five hundred fifteen thousand, two hundred twenty-five".