3455522621 has 4 divisors (see below), whose sum is σ = 3468368700. Its totient is φ = 3442676544.

The previous prime is 3455522617. The next prime is 3455522627. The reversal of 3455522621 is 1262255543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1262255543 = 6581 ⋅191803.

It can be written as a sum of positive squares in 2 ways, for example, as 1665048025 + 1790474596 = 40805^2 + 42314^2 .

It is a cyclic number.

It is not a de Polignac number, because 3455522621 - 2² = 3455522617 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 (3455522627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6422636 + ... + 6423173.

It is an arithmetic number, because the mean of its divisors is an integer number (867092175).

Almost surely, 2^3455522621 is an apocalyptic number.

It is an amenable number.

3455522621 is a deficient number, since it is larger than the sum of its proper divisors (12846079).

3455522621 is a wasteful number, since it uses less digits than its factorization.

3455522621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12846078.

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

The square root of 3455522621 is about 58783.6934957306. The cubic root of 3455522621 is about 1511.8356432597.

The spelling of 3455522621 in words is "three billion, four hundred fifty-five million, five hundred twenty-two thousand, six hundred twenty-one".