45221554 has 16 divisors (see below), whose sum is σ = 78458688. Its totient is φ = 19146672.

The previous prime is 45221549. The next prime is 45221563. The reversal of 45221554 is 45512254.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18297 + ... + 20620.

It is an arithmetic number, because the mean of its divisors is an integer number (4903668).

Almost surely, 2^45221554 is an apocalyptic number.

45221554 is a deficient number, since it is larger than the sum of its proper divisors (33237134).

45221554 is a wasteful number, since it uses less digits than its factorization.

45221554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39009.

The product of its digits is 8000, while the sum is 28.

The square root of 45221554 is about 6724.6973166084. The cubic root of 45221554 is about 356.2721113187.

The spelling of 45221554 in words is "forty-five million, two hundred twenty-one thousand, five hundred fifty-four".