52051340 has 48 divisors (see below), whose sum is σ = 119949984. Its totient is φ = 18816000.

The previous prime is 52051319. The next prime is 52051357. The reversal of 52051340 is 4315025.

52051340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 42740 + ... + 43940.

It is an arithmetic number, because the mean of its divisors is an integer number (2498958).

Almost surely, 2^52051340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52051340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59974992).

52051340 is an abundant number, since it is smaller than the sum of its proper divisors (67898644).

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

52051340 is a wasteful number, since it uses less digits than its factorization.

52051340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418 (or 1416 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 52051340 is about 7214.6614612191. The cubic root of 52051340 is about 373.3739131768.

Adding to 52051340 its reverse (4315025), we get a palindrome (56366365).

The spelling of 52051340 in words is "fifty-two million, fifty-one thousand, three hundred forty".