52616642 has 16 divisors (see below), whose sum is σ = 85753080. Its totient is φ = 24068352.

The previous prime is 52616639. The next prime is 52616659. The reversal of 52616642 is 24661625.

52616642 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 18054001 + 34562641 = 4249^2 + 5879^2 .

It is a super-2 number, since 2×52616642² = 5537022030712328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52616599 and 52616608.

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 7 ways as a sum of consecutive naturals, for example, 6017 + ... + 11892.

Almost surely, 2^52616642 is an apocalyptic number.

52616642 is a deficient number, since it is larger than the sum of its proper divisors (33136438).

52616642 is a wasteful number, since it uses less digits than its factorization.

52616642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18037.

The product of its digits is 17280, while the sum is 32.

The square root of 52616642 is about 7253.7329699955. The cubic root of 52616642 is about 374.7207212458.

The spelling of 52616642 in words is "fifty-two million, six hundred sixteen thousand, six hundred forty-two".