52376899621 has 2 divisors, whose sum is σ = 52376899622. Its totient is φ = 52376899620.

The previous prime is 52376899583. The next prime is 52376899643. The reversal of 52376899621 is 12699867325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47923339396 + 4453560225 = 218914^2 + 66735^2 .

It is a cyclic number.

It is not a de Polignac number, because 52376899621 - 2¹³ = 52376891429 is a prime.

It is a super-2 number, since 2×52376899621² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52376869621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26188449810 + 26188449811.

It is an arithmetic number, because the mean of its divisors is an integer number (26188449811).

Almost surely, 2^52376899621 is an apocalyptic number.

It is an amenable number.

52376899621 is a deficient number, since it is larger than the sum of its proper divisors (1).

52376899621 is an equidigital number, since it uses as much as digits as its factorization.

52376899621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 58.

The spelling of 52376899621 in words is "fifty-two billion, three hundred seventy-six million, eight hundred ninety-nine thousand, six hundred twenty-one".