52151860 has 24 divisors (see below), whose sum is σ = 113296680. Its totient is φ = 20141184.

The previous prime is 52151849. The next prime is 52151863. The reversal of 52151860 is 6815125.

52151860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13264164 + 38887696 = 3642^2 + 6236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52151863) 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 7 ways as a sum of consecutive naturals, for example, 44379 + ... + 45538.

It is an arithmetic number, because the mean of its divisors is an integer number (4720695).

Almost surely, 2^52151860 is an apocalyptic number.

It is an amenable number.

52151860 is an abundant number, since it is smaller than the sum of its proper divisors (61144820).

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

52151860 is a wasteful number, since it uses less digits than its factorization.

52151860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89955 (or 89953 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 52151860 is about 7221.6244709899. The cubic root of 52151860 is about 373.6141081568.

Adding to 52151860 its reverse (6815125), we get a palindrome (58966985).

The spelling of 52151860 in words is "fifty-two million, one hundred fifty-one thousand, eight hundred sixty".