53250330 has 32 divisors (see below), whose sum is σ = 146058624. Its totient is φ = 12171456.

The previous prime is 53250317. The next prime is 53250347. The reversal of 53250330 is 3305235.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 53250297 and 53250306.

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 15 ways as a sum of consecutive naturals, for example, 126577 + ... + 126996.

It is an arithmetic number, because the mean of its divisors is an integer number (4564332).

Almost surely, 2^53250330 is an apocalyptic number.

53250330 is an abundant number, since it is smaller than the sum of its proper divisors (92808294).

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

53250330 is a wasteful number, since it uses less digits than its factorization.

53250330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253590.

The product of its (nonzero) digits is 1350, while the sum is 21.

The square root of 53250330 is about 7297.2823708556. The cubic root of 53250330 is about 376.2190373449.

Adding to 53250330 its reverse (3305235), we get a palindrome (56555565).

The spelling of 53250330 in words is "fifty-three million, two hundred fifty thousand, three hundred thirty".