53003320 has 16 divisors (see below), whose sum is σ = 119257560. Its totient is φ = 21201312.

The previous prime is 53003287. The next prime is 53003333. The reversal of 53003320 is 2330035.

It is a junction number, because it is equal to n+sod(n) for n = 53003294 and 53003303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662502 + ... + 662581.

Almost surely, 2^53003320 is an apocalyptic number.

It is an amenable number.

53003320 is an abundant number, since it is smaller than the sum of its proper divisors (66254240).

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

53003320 is a wasteful number, since it uses less digits than its factorization.

53003320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325094 (or 1325090 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 16.

The square root of 53003320 is about 7280.3379042459. The cubic root of 53003320 is about 375.6364185720.

Adding to 53003320 its reverse (2330035), we get a palindrome (55333355).

The spelling of 53003320 in words is "fifty-three million, three thousand, three hundred twenty".