45642577 has 4 divisors (see below), whose sum is σ = 46416240. Its totient is φ = 44868916.

The previous prime is 45642533. The next prime is 45642581. The reversal of 45642577 is 77524654.

45642577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77524654 = 2 ⋅38762327.

It is a cyclic number.

It is not a de Polignac number, because 45642577 - 2⁷ = 45642449 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45642517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386743 + ... + 386860.

It is an arithmetic number, because the mean of its divisors is an integer number (11604060).

Almost surely, 2^45642577 is an apocalyptic number.

It is an amenable number.

45642577 is a deficient number, since it is larger than the sum of its proper divisors (773663).

45642577 is an equidigital number, since it uses as much as digits as its factorization.

45642577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773662.

The product of its digits is 235200, while the sum is 40.

The square root of 45642577 is about 6755.9290256781. The cubic root of 45642577 is about 357.3743558995.

The spelling of 45642577 in words is "forty-five million, six hundred forty-two thousand, five hundred seventy-seven".