45220577 has 2 divisors, whose sum is σ = 45220578. Its totient is φ = 45220576.

The previous prime is 45220573. The next prime is 45220579. The reversal of 45220577 is 77502254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41075281 + 4145296 = 6409^2 + 2036^2 .

It is a cyclic number.

It is not a de Polignac number, because 45220577 - 2² = 45220573 is a prime.

Together with 45220579, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45220573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22610288 + 22610289.

It is an arithmetic number, because the mean of its divisors is an integer number (22610289).

Almost surely, 2^45220577 is an apocalyptic number.

It is an amenable number.

45220577 is a deficient number, since it is larger than the sum of its proper divisors (1).

45220577 is an equidigital number, since it uses as much as digits as its factorization.

45220577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 45220577 is about 6724.6246735413. The cubic root of 45220577 is about 356.2695455779.

The spelling of 45220577 in words is "forty-five million, two hundred twenty thousand, five hundred seventy-seven".