53323420 has 24 divisors (see below), whose sum is σ = 113400000. Its totient is φ = 21058752.

The previous prime is 53323399. The next prime is 53323421. The reversal of 53323420 is 2432335.

It is a junction number, because it is equal to n+sod(n) for n = 53323391 and 53323400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53323421) 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, 15295 + ... + 18454.

It is an arithmetic number, because the mean of its divisors is an integer number (4725000).

Almost surely, 2^53323420 is an apocalyptic number.

It is an amenable number.

53323420 is an abundant number, since it is smaller than the sum of its proper divisors (60076580).

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

53323420 is a wasteful number, since it uses less digits than its factorization.

53323420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33837 (or 33835 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 53323420 is about 7302.2886823242. The cubic root of 53323420 is about 376.3910880977.

Adding to 53323420 its reverse (2432335), we get a palindrome (55755755).

The spelling of 53323420 in words is "fifty-three million, three hundred twenty-three thousand, four hundred twenty".