75521164 has 12 divisors (see below), whose sum is σ = 132893488. Its totient is φ = 37551600.

The previous prime is 75521161. The next prime is 75521179. The reversal of 75521164 is 46112557.

It is not an unprimeable number, because it can be changed into a prime (75521161) 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, 51432 + ... + 52879.

Almost surely, 2^75521164 is an apocalyptic number.

It is an amenable number.

75521164 is a deficient number, since it is larger than the sum of its proper divisors (57372324).

75521164 is a wasteful number, since it uses less digits than its factorization.

75521164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104496 (or 104494 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 75521164 is about 8690.2913645056. The cubic root of 75521164 is about 422.6908937452.

The spelling of 75521164 in words is "seventy-five million, five hundred twenty-one thousand, one hundred sixty-four".