52501052491 has 16 divisors (see below), whose sum is σ = 55513589760. Its totient is φ = 49513757760.

The previous prime is 52501052423. The next prime is 52501052551. The reversal of 52501052491 is 19425010525.

It is a cyclic number.

It is not a de Polignac number, because 52501052491 - 2³¹ = 50353568843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52501053491) 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 in 15 ways as a sum of consecutive naturals, for example, 7653135 + ... + 7659991.

It is an arithmetic number, because the mean of its divisors is an integer number (3469599360).

Almost surely, 2^52501052491 is an apocalyptic number.

52501052491 is a deficient number, since it is larger than the sum of its proper divisors (3012537269).

52501052491 is a wasteful number, since it uses less digits than its factorization.

52501052491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8634.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 52501052491 in words is "fifty-two billion, five hundred one million, fifty-two thousand, four hundred ninety-one".