52021206 has 24 divisors (see below), whose sum is σ = 113255064. Its totient is φ = 17256960.

The previous prime is 52021201. The next prime is 52021219. The reversal of 52021206 is 60212025.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52021201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3051 + ... + 10646.

It is an arithmetic number, because the mean of its divisors is an integer number (4718961).

Almost surely, 2^52021206 is an apocalyptic number.

52021206 is an abundant number, since it is smaller than the sum of its proper divisors (61233858).

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

52021206 is a wasteful number, since it uses less digits than its factorization.

52021206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13916 (or 13913 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 52021206 is about 7212.5727725965. The cubic root of 52021206 is about 373.3018470115.

The spelling of 52021206 in words is "fifty-two million, twenty-one thousand, two hundred six".