52757649647 has 4 divisors (see below), whose sum is σ = 52777811856. Its totient is φ = 52737487440.

The previous prime is 52757649643. The next prime is 52757649653. The reversal of 52757649647 is 74694675725.

It is a happy number.

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 52757649647 - 2² = 52757649643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52757649647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52757649643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10077179 + ... + 10082412.

It is an arithmetic number, because the mean of its divisors is an integer number (13194452964).

Almost surely, 2^52757649647 is an apocalyptic number.

52757649647 is a deficient number, since it is larger than the sum of its proper divisors (20162209).

52757649647 is a wasteful number, since it uses less digits than its factorization.

52757649647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20162208.

The product of its digits is 88905600, while the sum is 62.

The spelling of 52757649647 in words is "fifty-two billion, seven hundred fifty-seven million, six hundred forty-nine thousand, six hundred forty-seven".