52140330 has 48 divisors (see below), whose sum is σ = 147891744. Its totient is φ = 12639840.

The previous prime is 52140329. The next prime is 52140337. The reversal of 52140330 is 3304125.

52140330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×52140330² = 5437228025017800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (52140337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25344 + ... + 27323.

It is an arithmetic number, because the mean of its divisors is an integer number (3081078).

Almost surely, 2^52140330 is an apocalyptic number.

52140330 is an abundant number, since it is smaller than the sum of its proper divisors (95751414).

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

52140330 is a wasteful number, since it uses less digits than its factorization.

52140330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52691 (or 52688 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 52140330 is about 7220.8261300214. The cubic root of 52140330 is about 373.5865726214.

Adding to 52140330 its reverse (3304125), we get a palindrome (55444455).

The spelling of 52140330 in words is "fifty-two million, one hundred forty thousand, three hundred thirty".