52863145621 has 24 divisors (see below), whose sum is σ = 63636158880. Its totient is φ = 43608729120.

The previous prime is 52863145609. The next prime is 52863145633. The reversal of 52863145621 is 12654136825.

It is an interprime number because it is at equal distance from previous prime (52863145609) and next prime (52863145633).

It is not a de Polignac number, because 52863145621 - 2²³ = 52854757013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52863145661) 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 23 ways as a sum of consecutive naturals, for example, 191995 + ... + 377608.

It is an arithmetic number, because the mean of its divisors is an integer number (2651506620).

Almost surely, 2^52863145621 is an apocalyptic number.

It is an amenable number.

52863145621 is a deficient number, since it is larger than the sum of its proper divisors (10773013259).

52863145621 is a wasteful number, since it uses less digits than its factorization.

52863145621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569697 (or 569686 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The spelling of 52863145621 in words is "fifty-two billion, eight hundred sixty-three million, one hundred forty-five thousand, six hundred twenty-one".