52191066 has 16 divisors (see below), whose sum is σ = 104533344. Its totient is φ = 17371824.

The previous prime is 52191049. The next prime is 52191067. The reversal of 52191066 is 66019125.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52191067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1536 + ... + 10331.

It is an arithmetic number, because the mean of its divisors is an integer number (6533334).

Almost surely, 2^52191066 is an apocalyptic number.

52191066 is an abundant number, since it is smaller than the sum of its proper divisors (52342278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52191066 is a wasteful number, since it uses less digits than its factorization.

52191066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12605.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 52191066 is about 7224.3384472213. The cubic root of 52191066 is about 373.7077081783.

The spelling of 52191066 in words is "fifty-two million, one hundred ninety-one thousand, sixty-six".