51620450543 has 8 divisors (see below), whose sum is σ = 51985315200. Its totient is φ = 51256777248.

The previous prime is 51620450533. The next prime is 51620450579. The reversal of 51620450543 is 34505402615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51620450543 - 2⁴ = 51620450527 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 (51620450533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210788 + ... + 384281.

It is an arithmetic number, because the mean of its divisors is an integer number (6498164400).

Almost surely, 2^51620450543 is an apocalyptic number.

51620450543 is a deficient number, since it is larger than the sum of its proper divisors (364864657).

51620450543 is a wasteful number, since it uses less digits than its factorization.

51620450543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595681.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 51620450543 in words is "fifty-one billion, six hundred twenty million, four hundred fifty thousand, five hundred forty-three".