552440456300621 has 12 divisors (see below), whose sum is σ = 641880368958816. Its totient is φ = 465757761730320.

The previous prime is 552440456300609. The next prime is 552440456300669. The reversal of 552440456300621 is 126003654044255.

It is not a de Polignac number, because 552440456300621 - 2³⁴ = 552423276431437 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 (552440456300921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10604658875 + ... + 10604710968.

It is an arithmetic number, because the mean of its divisors is an integer number (53490030746568).

Almost surely, 2^{552440456300621} is an apocalyptic number.

It is an amenable number.

552440456300621 is a deficient number, since it is larger than the sum of its proper divisors (89439912658195).

552440456300621 is an equidigital number, since it uses as much as digits as its factorization.

552440456300621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21209369972 (or 21209369911 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 47.

The spelling of 552440456300621 in words is "five hundred fifty-two trillion, four hundred forty billion, four hundred fifty-six million, three hundred thousand, six hundred twenty-one".