52820779 has 8 divisors (see below), whose sum is σ = 60655680. Its totient is φ = 45491400.

The previous prime is 52820771. The next prime is 52820783. The reversal of 52820779 is 97702825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52820779 - 2³ = 52820771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52820771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126157 + ... + 126574.

It is an arithmetic number, because the mean of its divisors is an integer number (7581960).

Almost surely, 2^52820779 is an apocalyptic number.

52820779 is a deficient number, since it is larger than the sum of its proper divisors (7834901).

52820779 is a wasteful number, since it uses less digits than its factorization.

52820779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252761.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 52820779 is about 7267.7905170691. The cubic root of 52820779 is about 375.2046977247.

The spelling of 52820779 in words is "fifty-two million, eight hundred twenty thousand, seven hundred seventy-nine".