52820072156 has 24 divisors (see below), whose sum is σ = 97879513536. Its totient is φ = 24854720000.

The previous prime is 52820072131. The next prime is 52820072159. The reversal of 52820072156 is 65127002825.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52820072159) 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 7 ways as a sum of consecutive naturals, for example, 1822781 + ... + 1851531.

It is an arithmetic number, because the mean of its divisors is an integer number (4078313064).

Almost surely, 2^52820072156 is an apocalyptic number.

It is an amenable number.

52820072156 is a deficient number, since it is larger than the sum of its proper divisors (45059441380).

52820072156 is a wasteful number, since it uses less digits than its factorization.

52820072156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55789 (or 55787 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 52820072156 in words is "fifty-two billion, eight hundred twenty million, seventy-two thousand, one hundred fifty-six".