75253613 has 2 divisors, whose sum is σ = 75253614. Its totient is φ = 75253612.

The previous prime is 75253601. The next prime is 75253621. The reversal of 75253613 is 31635257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41822089 + 33431524 = 6467^2 + 5782^2 .

It is a cyclic number.

It is not a de Polignac number, because 75253613 - 2²⁰ = 74205037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75253613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75253643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37626806 + 37626807.

It is an arithmetic number, because the mean of its divisors is an integer number (37626807).

Almost surely, 2^75253613 is an apocalyptic number.

It is an amenable number.

75253613 is a deficient number, since it is larger than the sum of its proper divisors (1).

75253613 is an equidigital number, since it uses as much as digits as its factorization.

75253613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 32.

The square root of 75253613 is about 8674.8840338070. The cubic root of 75253613 is about 422.1911433906.

The spelling of 75253613 in words is "seventy-five million, two hundred fifty-three thousand, six hundred thirteen".