52721005787 has 2 divisors, whose sum is σ = 52721005788. Its totient is φ = 52721005786.

The previous prime is 52721005783. The next prime is 52721005837. The reversal of 52721005787 is 78750012725.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52721005787 - 2² = 52721005783 is a prime.

It is not a weakly prime, because it can be changed into another prime (52721005783) 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 as a sum of consecutive naturals, namely, 26360502893 + 26360502894.

It is an arithmetic number, because the mean of its divisors is an integer number (26360502894).

Almost surely, 2^52721005787 is an apocalyptic number.

52721005787 is a deficient number, since it is larger than the sum of its proper divisors (1).

52721005787 is an equidigital number, since it uses as much as digits as its factorization.

52721005787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 274400, while the sum is 44.

The spelling of 52721005787 in words is "fifty-two billion, seven hundred twenty-one million, five thousand, seven hundred eighty-seven".