52012660 has 96 divisors (see below), whose sum is σ = 134991360. Its totient is φ = 16439808.

The previous prime is 52012621. The next prime is 52012711. The reversal of 52012660 is 6621025.

52012660 = T₉₉ + T₁₀₀ + ... + T₆₇₈.

52012660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 93102 + ... + 93658.

It is an arithmetic number, because the mean of its divisors is an integer number (1406160).

Almost surely, 2^52012660 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 52012660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67495680).

52012660 is an abundant number, since it is smaller than the sum of its proper divisors (82978700).

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

52012660 is a wasteful number, since it uses less digits than its factorization.

52012660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 52012660 is about 7211.9803105666. The cubic root of 52012660 is about 373.2814039875.

Adding to 52012660 its reverse (6621025), we get a palindrome (58633685).

The spelling of 52012660 in words is "fifty-two million, twelve thousand, six hundred sixty".