3455505421 has 2 divisors, whose sum is σ = 3455505422. Its totient is φ = 3455505420.

The previous prime is 3455505419. The next prime is 3455505439. The reversal of 3455505421 is 1245055543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3316147396 + 139358025 = 57586^2 + 11805^2 .

It is an emirp because it is prime and its reverse (1245055543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3455505421 - 2¹ = 3455505419 is a prime.

Together with 3455505419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3455505481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1727752710 + 1727752711.

It is an arithmetic number, because the mean of its divisors is an integer number (1727752711).

Almost surely, 2^3455505421 is an apocalyptic number.

It is an amenable number.

3455505421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3455505421 is an equidigital number, since it uses as much as digits as its factorization.

3455505421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 3455505421 is about 58783.5471964733. The cubic root of 3455505421 is about 1511.8331348484.

The spelling of 3455505421 in words is "three billion, four hundred fifty-five million, five hundred five thousand, four hundred twenty-one".