53811330 has 32 divisors (see below), whose sum is σ = 129774528. Its totient is φ = 14280000.

The previous prime is 53811323. The next prime is 53811337. The reversal of 53811330 is 3311835.

It is an interprime number because it is at equal distance from previous prime (53811323) and next prime (53811337).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53811330.

It is not an unprimeable number, because it can be changed into a prime (53811337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2080 + ... + 10580.

It is an arithmetic number, because the mean of its divisors is an integer number (4055454).

Almost surely, 2^53811330 is an apocalyptic number.

53811330 is an abundant number, since it is smaller than the sum of its proper divisors (75963198).

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

53811330 is a wasteful number, since it uses less digits than its factorization.

53811330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 53811330 is about 7335.6206281405. The cubic root of 53811330 is about 377.5355988825.

The spelling of 53811330 in words is "fifty-three million, eight hundred eleven thousand, three hundred thirty".