75066523 has 4 divisors (see below), whose sum is σ = 85790320. Its totient is φ = 64342728.

The previous prime is 75066521. The next prime is 75066527. The reversal of 75066523 is 32566057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32566057 = 19 ⋅1714003.

It is a cyclic number.

It is not a de Polignac number, because 75066523 - 2¹ = 75066521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75066521) 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, 5361888 + ... + 5361901.

It is an arithmetic number, because the mean of its divisors is an integer number (21447580).

Almost surely, 2^75066523 is an apocalyptic number.

75066523 is a deficient number, since it is larger than the sum of its proper divisors (10723797).

75066523 is a wasteful number, since it uses less digits than its factorization.

75066523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10723796.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 75066523 is about 8664.0938937664. The cubic root of 75066523 is about 421.8409795191.

The spelling of 75066523 in words is "seventy-five million, sixty-six thousand, five hundred twenty-three".