75241253 has 4 divisors (see below), whose sum is σ = 75519168. Its totient is φ = 74963340.

The previous prime is 75241249. The next prime is 75241261. The reversal of 75241253 is 35214257.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75241253 - 2² = 75241249 is a prime.

It is a super-2 number, since 2×75241253² = 11322492306020018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75241213) 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 3 ways as a sum of consecutive naturals, for example, 138551 + ... + 139092.

It is an arithmetic number, because the mean of its divisors is an integer number (18879792).

Almost surely, 2^75241253 is an apocalyptic number.

It is an amenable number.

75241253 is a deficient number, since it is larger than the sum of its proper divisors (277915).

75241253 is a wasteful number, since it uses less digits than its factorization.

75241253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277914.

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

The square root of 75241253 is about 8674.1716030985. The cubic root of 75241253 is about 422.1680279190.

The spelling of 75241253 in words is "seventy-five million, two hundred forty-one thousand, two hundred fifty-three".