75506806 has 4 divisors (see below), whose sum is σ = 113260212. Its totient is φ = 37753402.

The previous prime is 75506803. The next prime is 75506819. The reversal of 75506806 is 60860557.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60860557 = 113 ⋅538589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75506801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18876700 + ... + 18876703.

It is an arithmetic number, because the mean of its divisors is an integer number (28315053).

Almost surely, 2^75506806 is an apocalyptic number.

75506806 is a deficient number, since it is larger than the sum of its proper divisors (37753406).

75506806 is a wasteful number, since it uses less digits than its factorization.

75506806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37753405.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 75506806 is about 8689.4652309564. The cubic root of 75506806 is about 422.6641048727.

The spelling of 75506806 in words is "seventy-five million, five hundred six thousand, eight hundred six".