45775661 has 2 divisors, whose sum is σ = 45775662. Its totient is φ = 45775660.

The previous prime is 45775657. The next prime is 45775687. The reversal of 45775661 is 16657754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40513225 + 5262436 = 6365^2 + 2294^2 .

It is a cyclic number.

It is not a de Polignac number, because 45775661 - 2² = 45775657 is a prime.

It is a super-2 number, since 2×45775661² = 4190822279973842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45775621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22887830 + 22887831.

It is an arithmetic number, because the mean of its divisors is an integer number (22887831).

Almost surely, 2^45775661 is an apocalyptic number.

It is an amenable number.

45775661 is a deficient number, since it is larger than the sum of its proper divisors (1).

45775661 is an equidigital number, since it uses as much as digits as its factorization.

45775661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176400, while the sum is 41.

The square root of 45775661 is about 6765.7712790191. The cubic root of 45775661 is about 357.7213612683.

The spelling of 45775661 in words is "forty-five million, seven hundred seventy-five thousand, six hundred sixty-one".