45266561 has 2 divisors, whose sum is σ = 45266562. Its totient is φ = 45266560.

The previous prime is 45266527. The next prime is 45266579. The reversal of 45266561 is 16566254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36966400 + 8300161 = 6080^2 + 2881^2 .

It is a cyclic number.

It is not a de Polignac number, because 45266561 - 2¹⁰ = 45265537 is a prime.

It is not a weakly prime, because it can be changed into another prime (45266521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22633280 + 22633281.

It is an arithmetic number, because the mean of its divisors is an integer number (22633281).

Almost surely, 2^45266561 is an apocalyptic number.

It is an amenable number.

45266561 is a deficient number, since it is larger than the sum of its proper divisors (1).

45266561 is an equidigital number, since it uses as much as digits as its factorization.

45266561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 35.

The square root of 45266561 is about 6728.0428803628. The cubic root of 45266561 is about 356.3902660545.

The spelling of 45266561 in words is "forty-five million, two hundred sixty-six thousand, five hundred sixty-one".