52776447 has 4 divisors (see below), whose sum is σ = 70368600. Its totient is φ = 35184296.

The previous prime is 52776443. The next prime is 52776461. The reversal of 52776447 is 74467725.

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 52776447 - 2² = 52776443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52776399 and 52776408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52776443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8796072 + ... + 8796077.

It is an arithmetic number, because the mean of its divisors is an integer number (17592150).

Almost surely, 2^52776447 is an apocalyptic number.

52776447 is a deficient number, since it is larger than the sum of its proper divisors (17592153).

52776447 is a wasteful number, since it uses less digits than its factorization.

52776447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17592152.

The product of its digits is 329280, while the sum is 42.

The square root of 52776447 is about 7264.7399815823. The cubic root of 52776447 is about 375.0996997131.

The spelling of 52776447 in words is "fifty-two million, seven hundred seventy-six thousand, four hundred forty-seven".