3605421553 has 2 divisors, whose sum is σ = 3605421554. Its totient is φ = 3605421552.

The previous prime is 3605421539. The next prime is 3605421569. The reversal of 3605421553 is 3551245063.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3330790369 + 274631184 = 57713^2 + 16572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3605421553 is a prime.

It is not a weakly prime, because it can be changed into another prime (3605421503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1802710776 + 1802710777.

It is an arithmetic number, because the mean of its divisors is an integer number (1802710777).

Almost surely, 2^3605421553 is an apocalyptic number.

It is an amenable number.

3605421553 is a deficient number, since it is larger than the sum of its proper divisors (1).

3605421553 is an equidigital number, since it uses as much as digits as its factorization.

3605421553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 3605421553 is about 60045.1626111546. The cubic root of 3605421553 is about 1533.3878468909.

The spelling of 3605421553 in words is "three billion, six hundred five million, four hundred twenty-one thousand, five hundred fifty-three".