45545240255551 has 2 divisors, whose sum is σ = 45545240255552. Its totient is φ = 45545240255550.

The previous prime is 45545240255521. The next prime is 45545240255621. The reversal of 45545240255551 is 15555204254554.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45545240255551 - 2⁵ = 45545240255519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45545240255521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22772620127775 + 22772620127776.

It is an arithmetic number, because the mean of its divisors is an integer number (22772620127776).

Almost surely, 2^{45545240255551} is an apocalyptic number.

45545240255551 is a deficient number, since it is larger than the sum of its proper divisors (1).

45545240255551 is an equidigital number, since it uses as much as digits as its factorization.

45545240255551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20000000, while the sum is 52.

The spelling of 45545240255551 in words is "forty-five trillion, five hundred forty-five billion, two hundred forty million, two hundred fifty-five thousand, five hundred fifty-one".