45666549 has 12 divisors (see below), whose sum is σ = 67208076. Its totient is φ = 29869632.

The previous prime is 45666541. The next prime is 45666571. The reversal of 45666549 is 94566654.

It can be written as a sum of positive squares in 2 ways, for example, as 40870449 + 4796100 = 6393^2 + 2190^2 .

It is not a de Polignac number, because 45666549 - 2³ = 45666541 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45666541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47392 + ... + 48345.

It is an arithmetic number, because the mean of its divisors is an integer number (5600673).

Almost surely, 2^45666549 is an apocalyptic number.

It is an amenable number.

45666549 is a deficient number, since it is larger than the sum of its proper divisors (21541527).

45666549 is a wasteful number, since it uses less digits than its factorization.

45666549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95796 (or 95793 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 45666549 is about 6757.7029381292. The cubic root of 45666549 is about 357.4369106399.

The spelling of 45666549 in words is "forty-five million, six hundred sixty-six thousand, five hundred forty-nine".