53355320 has 16 divisors (see below), whose sum is σ = 120049560. Its totient is φ = 21342112.

The previous prime is 53355319. The next prime is 53355329. The reversal of 53355320 is 2355335.

It is a self number, because there is not a number n which added to its sum of digits gives 53355320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53355329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666902 + ... + 666981.

Almost surely, 2^53355320 is an apocalyptic number.

It is an amenable number.

53355320 is an abundant number, since it is smaller than the sum of its proper divisors (66694240).

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

53355320 is a wasteful number, since it uses less digits than its factorization.

53355320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333894 (or 1333890 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 26.

The square root of 53355320 is about 7304.4726024539. The cubic root of 53355320 is about 376.4661300598.

The spelling of 53355320 in words is "fifty-three million, three hundred fifty-five thousand, three hundred twenty".