53213166 has 32 divisors (see below), whose sum is σ = 120489120. Its totient is φ = 17402112.

The previous prime is 53213161. The next prime is 53213177. The reversal of 53213166 is 66131235.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53213161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6435 + ... + 12158.

It is an arithmetic number, because the mean of its divisors is an integer number (3765285).

Almost surely, 2^53213166 is an apocalyptic number.

53213166 is an abundant number, since it is smaller than the sum of its proper divisors (67275954).

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

53213166 is a wasteful number, since it uses less digits than its factorization.

53213166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18657 (or 18651 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 53213166 is about 7294.7354989746. The cubic root of 53213166 is about 376.1314944868.

The spelling of 53213166 in words is "fifty-three million, two hundred thirteen thousand, one hundred sixty-six".