52777239 has 8 divisors (see below), whose sum is σ = 70464240. Its totient is φ = 35137536.

The previous prime is 52777237. The next prime is 52777253. The reversal of 52777239 is 93277725.

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

It is not a de Polignac number, because 52777239 - 2¹ = 52777237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52777239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52777237) 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, 9132 + ... + 13745.

It is an arithmetic number, because the mean of its divisors is an integer number (8808030).

Almost surely, 2^52777239 is an apocalyptic number.

52777239 is a deficient number, since it is larger than the sum of its proper divisors (17687001).

52777239 is a wasteful number, since it uses less digits than its factorization.

52777239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23649.

The product of its digits is 185220, while the sum is 42.

The square root of 52777239 is about 7264.7944912434. The cubic root of 52777239 is about 375.1015760392.

The spelling of 52777239 in words is "fifty-two million, seven hundred seventy-seven thousand, two hundred thirty-nine".