75250613 has 2 divisors, whose sum is σ = 75250614. Its totient is φ = 75250612.

The previous prime is 75250597. The next prime is 75250627. The reversal of 75250613 is 31605257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61575409 + 13675204 = 7847^2 + 3698^2 .

It is an emirp because it is prime and its reverse (31605257) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75250613 - 2⁴ = 75250597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75250633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37625306 + 37625307.

It is an arithmetic number, because the mean of its divisors is an integer number (37625307).

Almost surely, 2^75250613 is an apocalyptic number.

It is an amenable number.

75250613 is a deficient number, since it is larger than the sum of its proper divisors (1).

75250613 is an equidigital number, since it uses as much as digits as its factorization.

75250613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 75250613 is about 8674.7111191094. The cubic root of 75250613 is about 422.1855330719.

The spelling of 75250613 in words is "seventy-five million, two hundred fifty thousand, six hundred thirteen".