45512033021557 has 2 divisors, whose sum is σ = 45512033021558. Its totient is φ = 45512033021556.

The previous prime is 45512033021537. The next prime is 45512033021569. The reversal of 45512033021557 is 75512033021554.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40633880529841 + 4878152491716 = 6374471^2 + 2208654^2 .

It is a cyclic number.

It is not a de Polignac number, because 45512033021557 - 2¹⁵ = 45512032988789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45512033021537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22756016510778 + 22756016510779.

It is an arithmetic number, because the mean of its divisors is an integer number (22756016510779).

Almost surely, 2^{45512033021557} is an apocalyptic number.

It is an amenable number.

45512033021557 is a deficient number, since it is larger than the sum of its proper divisors (1).

45512033021557 is an equidigital number, since it uses as much as digits as its factorization.

45512033021557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630000, while the sum is 43.

The spelling of 45512033021557 in words is "forty-five trillion, five hundred twelve billion, thirty-three million, twenty-one thousand, five hundred fifty-seven".