45755521 has 4 divisors (see below), whose sum is σ = 52292032. Its totient is φ = 39219012.

The previous prime is 45755519. The next prime is 45755527. The reversal of 45755521 is 12555754.

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.

It is not a de Polignac number, because 45755521 - 2¹ = 45755519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45755527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3268245 + ... + 3268258.

It is an arithmetic number, because the mean of its divisors is an integer number (13073008).

Almost surely, 2^45755521 is an apocalyptic number.

It is an amenable number.

45755521 is a deficient number, since it is larger than the sum of its proper divisors (6536511).

45755521 is an equidigital number, since it uses as much as digits as its factorization.

45755521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536510.

The product of its digits is 35000, while the sum is 34.

The square root of 45755521 is about 6764.2827409859. The cubic root of 45755521 is about 357.6688911352.

The spelling of 45755521 in words is "forty-five million, seven hundred fifty-five thousand, five hundred twenty-one".