52712839 has 4 divisors (see below), whose sum is σ = 53998560. Its totient is φ = 51427120.

The previous prime is 52712837. The next prime is 52712851. The reversal of 52712839 is 93821725.

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

It is not a de Polignac number, because 52712839 - 2¹ = 52712837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52712798 and 52712807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52712833) 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, 642799 + ... + 642880.

It is an arithmetic number, because the mean of its divisors is an integer number (13499640).

Almost surely, 2^52712839 is an apocalyptic number.

52712839 is a deficient number, since it is larger than the sum of its proper divisors (1285721).

52712839 is a wasteful number, since it uses less digits than its factorization.

52712839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285720.

The product of its digits is 30240, while the sum is 37.

The square root of 52712839 is about 7260.3608037067. The cubic root of 52712839 is about 374.9489447530.

It can be divided in two parts, 527 and 12839, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 52712839 in words is "fifty-two million, seven hundred twelve thousand, eight hundred thirty-nine".