53553330 has 24 divisors (see below), whose sum is σ = 139238892. Its totient is φ = 14280864.

The previous prime is 53553329. The next prime is 53553371. The reversal of 53553330 is 3335535.

It can be written as a sum of positive squares in 2 ways, for example, as 51365889 + 2187441 = 7167^2 + 1479^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53553294 and 53553303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297429 + ... + 297608.

Almost surely, 2^53553330 is an apocalyptic number.

53553330 is an abundant number, since it is smaller than the sum of its proper divisors (85685562).

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

53553330 is a wasteful number, since it uses less digits than its factorization.

53553330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595050 (or 595047 counting only the distinct ones).

The product of its (nonzero) digits is 10125, while the sum is 27.

The square root of 53553330 is about 7318.0140748703. The cubic root of 53553330 is about 376.9312635157.

Adding to 53553330 its reverse (3335535), we get a palindrome (56888865).

The spelling of 53553330 in words is "fifty-three million, five hundred fifty-three thousand, three hundred thirty".