52420615 has 16 divisors (see below), whose sum is σ = 68896800. Its totient is φ = 38051712.

The previous prime is 52420609. The next prime is 52420631. The reversal of 52420615 is 51602425.

52420615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 52420615 - 2⁵ = 52420583 is a prime.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 52420615.

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 15 ways as a sum of consecutive naturals, for example, 3000 + ... + 10669.

It is an arithmetic number, because the mean of its divisors is an integer number (4306050).

Almost surely, 2^52420615 is an apocalyptic number.

52420615 is a deficient number, since it is larger than the sum of its proper divisors (16476185).

52420615 is a wasteful number, since it uses less digits than its factorization.

52420615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13746.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 52420615 is about 7240.2082152380. The cubic root of 52420615 is about 374.2547926830.

It can be divided in two parts, 52420 and 615, that added together give a palindrome (53035).

The spelling of 52420615 in words is "fifty-two million, four hundred twenty thousand, six hundred fifteen".