4005091553 has 2 divisors, whose sum is σ = 4005091554. Its totient is φ = 4005091552.

The previous prime is 4005091549. The next prime is 4005091583. The reversal of 4005091553 is 3551905004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3815285824 + 189805729 = 61768^2 + 13777^2 .

It is a cyclic number.

It is not a de Polignac number, because 4005091553 - 2² = 4005091549 is a prime.

It is not a weakly prime, because it can be changed into another prime (4005091583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2002545776 + 2002545777.

It is an arithmetic number, because the mean of its divisors is an integer number (2002545777).

Almost surely, 2^4005091553 is an apocalyptic number.

It is an amenable number.

4005091553 is a deficient number, since it is larger than the sum of its proper divisors (1).

4005091553 is an equidigital number, since it uses as much as digits as its factorization.

4005091553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 4005091553 is about 63285.7926631246. The cubic root of 4005091553 is about 1588.0742944438.

Adding to 4005091553 its reverse (3551905004), we get a palindrome (7556996557).

The spelling of 4005091553 in words is "four billion, five million, ninety-one thousand, five hundred fifty-three".