52840779 has 4 divisors (see below), whose sum is σ = 70454376. Its totient is φ = 35227184.

The previous prime is 52840769. The next prime is 52840783. The reversal of 52840779 is 97704825.

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 52840779 - 2¹⁹ = 52316491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52840779.

It is not an unprimeable number, because it can be changed into a prime (52840769) 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, 8806794 + ... + 8806799.

It is an arithmetic number, because the mean of its divisors is an integer number (17613594).

Almost surely, 2^52840779 is an apocalyptic number.

52840779 is a deficient number, since it is larger than the sum of its proper divisors (17613597).

52840779 is a wasteful number, since it uses less digits than its factorization.

52840779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17613596.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 52840779 is about 7269.1663208376. The cubic root of 52840779 is about 375.2520474432.

The spelling of 52840779 in words is "fifty-two million, eight hundred forty thousand, seven hundred seventy-nine".