75343253 has 4 divisors (see below), whose sum is σ = 75406380. Its totient is φ = 75280128.

The previous prime is 75343249. The next prime is 75343259. The reversal of 75343253 is 35234357.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51509329 + 23833924 = 7177^2 + 4882^2 .

It is a cyclic number.

It is not a de Polignac number, because 75343253 - 2² = 75343249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75343259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29738 + ... + 32171.

It is an arithmetic number, because the mean of its divisors is an integer number (18851595).

Almost surely, 2^75343253 is an apocalyptic number.

It is an amenable number.

75343253 is a deficient number, since it is larger than the sum of its proper divisors (63127).

75343253 is a wasteful number, since it uses less digits than its factorization.

75343253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63126.

The product of its digits is 37800, while the sum is 32.

The square root of 75343253 is about 8680.0491358056. The cubic root of 75343253 is about 422.3587109699.

The spelling of 75343253 in words is "seventy-five million, three hundred forty-three thousand, two hundred fifty-three".