52773745621 has 24 divisors (see below), whose sum is σ = 57594910464. Its totient is φ = 48298662720.

The previous prime is 52773745573. The next prime is 52773745637. The reversal of 52773745621 is 12654737725.

It is a de Polignac number, because none of the positive numbers 2^k-52773745621 is a prime.

It is a super-3 number, since 3×52773745621³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52773745421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6901026 + ... + 6908668.

It is an arithmetic number, because the mean of its divisors is an integer number (2399787936).

Almost surely, 2^52773745621 is an apocalyptic number.

It is an amenable number.

52773745621 is a deficient number, since it is larger than the sum of its proper divisors (4821164843).

52773745621 is a wasteful number, since it uses less digits than its factorization.

52773745621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8329 (or 8310 counting only the distinct ones).

The product of its digits is 2469600, while the sum is 49.

The spelling of 52773745621 in words is "fifty-two billion, seven hundred seventy-three million, seven hundred forty-five thousand, six hundred twenty-one".