52205687787 has 32 divisors (see below), whose sum is σ = 80419198464. Its totient is φ = 29772403200.

The previous prime is 52205687783. The next prime is 52205687827. The reversal of 52205687787 is 78778650225.

It is not a de Polignac number, because 52205687787 - 2² = 52205687783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52205687783) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4656873 + ... + 4668069.

It is an arithmetic number, because the mean of its divisors is an integer number (2513099952).

Almost surely, 2^52205687787 is an apocalyptic number.

52205687787 is a deficient number, since it is larger than the sum of its proper divisors (28213510677).

52205687787 is a wasteful number, since it uses less digits than its factorization.

52205687787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19539.

The product of its (nonzero) digits is 13171200, while the sum is 57.

The spelling of 52205687787 in words is "fifty-two billion, two hundred five million, six hundred eighty-seven thousand, seven hundred eighty-seven".