45223511 has 4 divisors (see below), whose sum is σ = 45549000. Its totient is φ = 44898024.

The previous prime is 45223429. The next prime is 45223523. The reversal of 45223511 is 11532254.

45223511 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45223511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45223561) 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, 162536 + ... + 162813.

It is an arithmetic number, because the mean of its divisors is an integer number (11387250).

Almost surely, 2^45223511 is an apocalyptic number.

45223511 is a deficient number, since it is larger than the sum of its proper divisors (325489).

45223511 is a wasteful number, since it uses less digits than its factorization.

45223511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325488.

The product of its digits is 1200, while the sum is 23.

The square root of 45223511 is about 6724.8428234420. The cubic root of 45223511 is about 356.2772505676.

Adding to 45223511 its reverse (11532254), we get a palindrome (56755765).

The spelling of 45223511 in words is "forty-five million, two hundred twenty-three thousand, five hundred eleven".