421550505055124 has 6 divisors (see below), whose sum is σ = 737713383846474. Its totient is φ = 210775252527560.

The previous prime is 421550505055111. The next prime is 421550505055193.

It is a happy number.

421550505055124 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 399457384144900 + 22093120910224 = 19986430^2 + 4700332^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52693813131887 + ... + 52693813131894.

It is an arithmetic number, because the mean of its divisors is an integer number (122952230641079).

Almost surely, 2^{421550505055124} is an apocalyptic number.

It is an amenable number.

421550505055124 is a deficient number, since it is larger than the sum of its proper divisors (316162878791350).

421550505055124 is a wasteful number, since it uses less digits than its factorization.

421550505055124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105387626263785 (or 105387626263783 counting only the distinct ones).

The product of its (nonzero) digits is 1000000, while the sum is 44.

The spelling of 421550505055124 in words is "four hundred twenty-one trillion, five hundred fifty billion, five hundred five million, fifty-five thousand, one hundred twenty-four".