4405511553557 has 2 divisors, whose sum is σ = 4405511553558. Its totient is φ = 4405511553556.

The previous prime is 4405511553539. The next prime is 4405511553589. The reversal of 4405511553557 is 7553551155044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4020349816561 + 385161736996 = 2005081^2 + 620614^2 .

It is a cyclic number.

It is not a de Polignac number, because 4405511553557 - 2⁶ = 4405511553493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4405511553257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2202755776778 + 2202755776779.

It is an arithmetic number, because the mean of its divisors is an integer number (2202755776779).

Almost surely, 2^{4405511553557} is an apocalyptic number.

It is an amenable number.

4405511553557 is a deficient number, since it is larger than the sum of its proper divisors (1).

4405511553557 is an equidigital number, since it uses as much as digits as its factorization.

4405511553557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5250000, while the sum is 50.

The spelling of 4405511553557 in words is "four trillion, four hundred five billion, five hundred eleven million, five hundred fifty-three thousand, five hundred fifty-seven".