75172265 has 16 divisors (see below), whose sum is σ = 108520320. Its totient is φ = 48833280.

The previous prime is 75172259. The next prime is 75172267. The reversal of 75172265 is 56227157.

It is a happy number.

It is not a de Polignac number, because 75172265 - 2¹⁶ = 75106729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (75172267) by changing a digit.

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, 55856 + ... + 57185.

It is an arithmetic number, because the mean of its divisors is an integer number (6782520).

Almost surely, 2^75172265 is an apocalyptic number.

It is an amenable number.

75172265 is a deficient number, since it is larger than the sum of its proper divisors (33348055).

75172265 is a wasteful number, since it uses less digits than its factorization.

75172265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113072.

The product of its digits is 29400, while the sum is 35.

The square root of 75172265 is about 8670.1940578052. The cubic root of 75172265 is about 422.0389611610.

The spelling of 75172265 in words is "seventy-five million, one hundred seventy-two thousand, two hundred sixty-five".