45563855 has 4 divisors (see below), whose sum is σ = 54676632. Its totient is φ = 36451080.

The previous prime is 45563809. The next prime is 45563863. The reversal of 45563855 is 55836554.

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

It is not a de Polignac number, because 45563855 - 2¹⁰ = 45562831 is a prime.

It is a super-2 number, since 2×45563855² = 4152129764922050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4556381 + ... + 4556390.

It is an arithmetic number, because the mean of its divisors is an integer number (13669158).

Almost surely, 2^45563855 is an apocalyptic number.

45563855 is a deficient number, since it is larger than the sum of its proper divisors (9112777).

45563855 is an equidigital number, since it uses as much as digits as its factorization.

45563855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9112776.

The product of its digits is 360000, while the sum is 41.

The square root of 45563855 is about 6750.1003696241. The cubic root of 45563855 is about 357.1687772807.

The spelling of 45563855 in words is "forty-five million, five hundred sixty-three thousand, eight hundred fifty-five".