52775661072 has 20 divisors (see below), whose sum is σ = 136337124560. Its totient is φ = 17591887008.

The previous prime is 52775661047. The next prime is 52775661083. The reversal of 52775661072 is 27016657725.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1099492939 = 52775661072 / (5 + 2 + 7 + 7 + 5 + 6 + 6 + 1 + 0 + 7 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549746422 + ... + 549746517.

It is an arithmetic number, because the mean of its divisors is an integer number (6816856228).

Almost surely, 2^52775661072 is an apocalyptic number.

It is an amenable number.

52775661072 is an abundant number, since it is smaller than the sum of its proper divisors (83561463488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52775661072 is a wasteful number, since it uses less digits than its factorization.

52775661072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099492950 (or 1099492944 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 48.

The spelling of 52775661072 in words is "fifty-two billion, seven hundred seventy-five million, six hundred sixty-one thousand, seventy-two".