52617639 has 4 divisors (see below), whose sum is σ = 70156856. Its totient is φ = 35078424.

The previous prime is 52617623. The next prime is 52617641. The reversal of 52617639 is 93671625.

52617639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 52617639 - 2⁴ = 52617623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52617597 and 52617606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52617739) 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 3 ways as a sum of consecutive naturals, for example, 8769604 + ... + 8769609.

It is an arithmetic number, because the mean of its divisors is an integer number (17539214).

Almost surely, 2^52617639 is an apocalyptic number.

52617639 is a deficient number, since it is larger than the sum of its proper divisors (17539217).

52617639 is a wasteful number, since it uses less digits than its factorization.

52617639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17539216.

The product of its digits is 68040, while the sum is 39.

The square root of 52617639 is about 7253.8016929056. The cubic root of 52617639 is about 374.7230880141.

The spelling of 52617639 in words is "fifty-two million, six hundred seventeen thousand, six hundred thirty-nine".