45521453 has 4 divisors (see below), whose sum is σ = 46033020. Its totient is φ = 45009888.

The previous prime is 45521447. The next prime is 45521491. The reversal of 45521453 is 35412554.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30327049 + 15194404 = 5507^2 + 3898^2 .

It is a cyclic number.

It is not a de Polignac number, because 45521453 - 2⁶ = 45521389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45521353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255650 + ... + 255827.

It is an arithmetic number, because the mean of its divisors is an integer number (11508255).

Almost surely, 2^45521453 is an apocalyptic number.

It is an amenable number.

45521453 is a deficient number, since it is larger than the sum of its proper divisors (511567).

45521453 is an equidigital number, since it uses as much as digits as its factorization.

45521453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511566.

The product of its digits is 12000, while the sum is 29.

The square root of 45521453 is about 6746.9587963763. The cubic root of 45521453 is about 357.0579484169.

The spelling of 45521453 in words is "forty-five million, five hundred twenty-one thousand, four hundred fifty-three".