52778000008 has 8 divisors (see below), whose sum is σ = 98958750030. Its totient is φ = 26389000000.

The previous prime is 52778000003. The next prime is 52778000047. The reversal of 52778000008 is 80000087725.

It can be written as a sum of positive squares in only one way, i.e., 37327012804 + 15450987204 = 193202^2 + 124302^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (52778000003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3298624993 + ... + 3298625008.

Almost surely, 2^52778000008 is an apocalyptic number.

It is an amenable number.

52778000008 is a deficient number, since it is larger than the sum of its proper divisors (46180750022).

52778000008 is a wasteful number, since it uses less digits than its factorization.

52778000008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6597250007 (or 6597250003 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 37.

The spelling of 52778000008 in words is "fifty-two billion, seven hundred seventy-eight million, eight", and thus it is an aban number.