45561222 has 48 divisors (see below), whose sum is σ = 113218560. Its totient is φ = 12971376.

The previous prime is 45561203. The next prime is 45561223. The reversal of 45561222 is 22216554.

45561222 is a `hidden beast` number, since 45 + 5 + 612 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45561223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52363 + ... + 53225.

It is an arithmetic number, because the mean of its divisors is an integer number (2358720).

Almost surely, 2^45561222 is an apocalyptic number.

45561222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

45561222 is an abundant number, since it is smaller than the sum of its proper divisors (67657338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45561222 is a wasteful number, since it uses less digits than its factorization.

45561222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297 (or 1294 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 45561222 is about 6749.9053326695. The cubic root of 45561222 is about 357.1618972401.

Adding to 45561222 its reverse (22216554), we get a palindrome (67777776).

It can be divided in two parts, 4556 and 1222, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 45561222 in words is "forty-five million, five hundred sixty-one thousand, two hundred twenty-two".