52667613 has 12 divisors (see below), whose sum is σ = 78132028. Its totient is φ = 34162560.

The previous prime is 52667611. The next prime is 52667623. The reversal of 52667613 is 31676625.

It can be written as a sum of positive squares in 2 ways, for example, as 35676729 + 16990884 = 5973^2 + 4122^2 .

It is not a de Polignac number, because 52667613 - 2¹ = 52667611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52667611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78748 + ... + 79413.

Almost surely, 2^52667613 is an apocalyptic number.

It is an amenable number.

52667613 is a deficient number, since it is larger than the sum of its proper divisors (25464415).

52667613 is a wasteful number, since it uses less digits than its factorization.

52667613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158204 (or 158201 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 52667613 is about 7257.2455518606. The cubic root of 52667613 is about 374.8416825043.

The spelling of 52667613 in words is "fifty-two million, six hundred sixty-seven thousand, six hundred thirteen".