75513113 has 4 divisors (see below), whose sum is σ = 81321828. Its totient is φ = 69704400.

The previous prime is 75513107. The next prime is 75513121. The reversal of 75513113 is 31131557.

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 14235529 + 61277584 = 3773^2 + 7828^2 .

It is a cyclic number.

It is not a de Polignac number, because 75513113 - 2¹⁰ = 75512089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75513143) 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, 2904338 + ... + 2904363.

It is an arithmetic number, because the mean of its divisors is an integer number (20330457).

Almost surely, 2^75513113 is an apocalyptic number.

It is an amenable number.

75513113 is a deficient number, since it is larger than the sum of its proper divisors (5808715).

75513113 is a wasteful number, since it uses less digits than its factorization.

75513113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5808714.

The product of its digits is 1575, while the sum is 26.

The square root of 75513113 is about 8689.8281340887. The cubic root of 75513113 is about 422.6758727668.

The spelling of 75513113 in words is "seventy-five million, five hundred thirteen thousand, one hundred thirteen".