75113663 has 4 divisors (see below), whose sum is σ = 77143800. Its totient is φ = 73083528.

The previous prime is 75113657. The next prime is 75113693. The reversal of 75113663 is 36631157.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36631157 = 23 ⋅1592659.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75113663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75113693) 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, 1015013 + ... + 1015086.

It is an arithmetic number, because the mean of its divisors is an integer number (19285950).

Almost surely, 2^75113663 is an apocalyptic number.

75113663 is a deficient number, since it is larger than the sum of its proper divisors (2030137).

75113663 is a wasteful number, since it uses less digits than its factorization.

75113663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030136.

The product of its digits is 11340, while the sum is 32.

The square root of 75113663 is about 8666.8138897752. The cubic root of 75113663 is about 421.9292630924.

The spelling of 75113663 in words is "seventy-five million, one hundred thirteen thousand, six hundred sixty-three".