45591473 has 2 divisors, whose sum is σ = 45591474. Its totient is φ = 45591472.

The previous prime is 45591449. The next prime is 45591487. The reversal of 45591473 is 37419554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45387169 + 204304 = 6737^2 + 452^2 .

It is a cyclic number.

It is not a de Polignac number, because 45591473 - 2⁶ = 45591409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (45591373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22795736 + 22795737.

It is an arithmetic number, because the mean of its divisors is an integer number (22795737).

Almost surely, 2^45591473 is an apocalyptic number.

It is an amenable number.

45591473 is a deficient number, since it is larger than the sum of its proper divisors (1).

45591473 is an equidigital number, since it uses as much as digits as its factorization.

45591473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 45591473 is about 6752.1458070750. The cubic root of 45591473 is about 357.2409272697.

It can be divided in two parts, 45591 and 473, that added together give a palindrome (46064).

The spelling of 45591473 in words is "forty-five million, five hundred ninety-one thousand, four hundred seventy-three".