53206420 has 24 divisors (see below), whose sum is σ = 112543200. Its totient is φ = 21128352.

The previous prime is 53206411. The next prime is 53206423. The reversal of 53206420 is 2460235.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 53206391 and 53206400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53206423) 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, 6790 + ... + 12349.

It is an arithmetic number, because the mean of its divisors is an integer number (4689300).

Almost surely, 2^53206420 is an apocalyptic number.

It is an amenable number.

53206420 is an abundant number, since it is smaller than the sum of its proper divisors (59336780).

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

53206420 is a wasteful number, since it uses less digits than its factorization.

53206420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19287 (or 19285 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 53206420 is about 7294.2730960665. The cubic root of 53206420 is about 376.1155993586.

Adding to 53206420 its reverse (2460235), we get a palindrome (55666655).

The spelling of 53206420 in words is "fifty-three million, two hundred six thousand, four hundred twenty".