75124253 has 6 divisors (see below), whose sum is σ = 77626782. Its totient is φ = 72699960.

The previous prime is 75124249. The next prime is 75124289. The reversal of 75124253 is 35242157.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 73736569 + 1387684 = 8587^2 + 1178^2 .

It is not a de Polignac number, because 75124253 - 2² = 75124249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75124223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38126 + ... + 40047.

It is an arithmetic number, because the mean of its divisors is an integer number (12937797).

Almost surely, 2^75124253 is an apocalyptic number.

It is an amenable number.

75124253 is a deficient number, since it is larger than the sum of its proper divisors (2502529).

75124253 is an equidigital number, since it uses as much as digits as its factorization.

75124253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78235 (or 78204 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 75124253 is about 8667.4248194028. The cubic root of 75124253 is about 421.9490909140.

The spelling of 75124253 in words is "seventy-five million, one hundred twenty-four thousand, two hundred fifty-three".