75550723 has 4 divisors (see below), whose sum is σ = 75683608. Its totient is φ = 75417840.

The previous prime is 75550711. The next prime is 75550729. The reversal of 75550723 is 32705557.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75550723 - 2⁵ = 75550691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75550729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65586 + ... + 66727.

It is an arithmetic number, because the mean of its divisors is an integer number (18920902).

Almost surely, 2^75550723 is an apocalyptic number.

75550723 is a deficient number, since it is larger than the sum of its proper divisors (132885).

75550723 is a wasteful number, since it uses less digits than its factorization.

75550723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132884.

The product of its (nonzero) digits is 36750, while the sum is 34.

The square root of 75550723 is about 8691.9918890896. The cubic root of 75550723 is about 422.7460336544.

The spelling of 75550723 in words is "seventy-five million, five hundred fifty thousand, seven hundred twenty-three".