53206213 has 16 divisors (see below), whose sum is σ = 58924800. Its totient is φ = 47839680.

The previous prime is 53206189. The next prime is 53206229. The reversal of 53206213 is 31260235.

It is a cyclic number.

It is not a de Polignac number, because 53206213 - 2¹³ = 53198021 is a prime.

It is a super-2 number, since 2×53206213² = 5661802203602738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53206273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32820 + ... + 34402.

It is an arithmetic number, because the mean of its divisors is an integer number (3682800).

Almost surely, 2^53206213 is an apocalyptic number.

It is an amenable number.

53206213 is a deficient number, since it is larger than the sum of its proper divisors (5718587).

53206213 is a wasteful number, since it uses less digits than its factorization.

53206213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 53206213 is about 7294.2589068390. The cubic root of 53206213 is about 376.1151115977.

Adding to 53206213 its reverse (31260235), we get a palindrome (84466448).

The spelling of 53206213 in words is "fifty-three million, two hundred six thousand, two hundred thirteen".