53531330 has 16 divisors (see below), whose sum is σ = 96526080. Its totient is φ = 21374832.

The previous prime is 53531329. The next prime is 53531347. The reversal of 53531330 is 3313535.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53531296 and 53531305.

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 7 ways as a sum of consecutive naturals, for example, 1661 + ... + 10479.

It is an arithmetic number, because the mean of its divisors is an integer number (6032880).

Almost surely, 2^53531330 is an apocalyptic number.

53531330 is a deficient number, since it is larger than the sum of its proper divisors (42994750).

53531330 is a wasteful number, since it uses less digits than its factorization.

53531330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9433.

The product of its (nonzero) digits is 2025, while the sum is 23.

The square root of 53531330 is about 7316.5107804199. The cubic root of 53531330 is about 376.8796413067.

Adding to 53531330 its reverse (3313535), we get a palindrome (56844865).

The spelling of 53531330 in words is "fifty-three million, five hundred thirty-one thousand, three hundred thirty".