52356439 has 4 divisors (see below), whose sum is σ = 52394656. Its totient is φ = 52318224.

The previous prime is 52356407. The next prime is 52356497. The reversal of 52356439 is 93465325.

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

It is a cyclic number.

It is not a de Polignac number, because 52356439 - 2⁵ = 52356407 is a prime.

It is a super-5 number, since 5×52356439⁵ (a number of 40 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52356398 and 52356407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52356839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16974 + ... + 19819.

It is an arithmetic number, because the mean of its divisors is an integer number (13098664).

Almost surely, 2^52356439 is an apocalyptic number.

52356439 is a deficient number, since it is larger than the sum of its proper divisors (38217).

52356439 is a wasteful number, since it uses less digits than its factorization.

52356439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38216.

The product of its digits is 97200, while the sum is 37.

The square root of 52356439 is about 7235.7749412209. The cubic root of 52356439 is about 374.1020030240.

The spelling of 52356439 in words is "fifty-two million, three hundred fifty-six thousand, four hundred thirty-nine".