53206636 has 24 divisors (see below), whose sum is σ = 111041280. Its totient is φ = 21811152.

The previous prime is 53206627. The next prime is 53206639. The reversal of 53206636 is 63660235.

It is a super-2 number, since 2×53206636² = 5661892228872992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53206598 and 53206607.

It is not an unprimeable number, because it can be changed into a prime (53206639) 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, 40666 + ... + 41953.

It is an arithmetic number, because the mean of its divisors is an integer number (4626720).

Almost surely, 2^53206636 is an apocalyptic number.

It is an amenable number.

53206636 is an abundant number, since it is smaller than the sum of its proper divisors (57834644).

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

53206636 is a wasteful number, since it uses less digits than its factorization.

53206636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82653 (or 82651 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 53206636 is about 7294.2879021876. The cubic root of 53206636 is about 376.1161083251.

The spelling of 53206636 in words is "fifty-three million, two hundred six thousand, six hundred thirty-six".