52782779 has 16 divisors (see below), whose sum is σ = 64108800. Its totient is φ = 42449184.

The previous prime is 52782767. The next prime is 52782799. The reversal of 52782779 is 97728725.

It is a cyclic number.

It is not a de Polignac number, because 52782779 - 2¹² = 52778683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52782799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12377 + ... + 16085.

It is an arithmetic number, because the mean of its divisors is an integer number (4006800).

Almost surely, 2^52782779 is an apocalyptic number.

52782779 is a deficient number, since it is larger than the sum of its proper divisors (11326021).

52782779 is a wasteful number, since it uses less digits than its factorization.

52782779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842.

The product of its digits is 493920, while the sum is 47.

The square root of 52782779 is about 7265.1757721338. The cubic root of 52782779 is about 375.1147003207.

The spelling of 52782779 in words is "fifty-two million, seven hundred eighty-two thousand, seven hundred seventy-nine".