45551947 has 4 divisors (see below), whose sum is σ = 52059376. Its totient is φ = 39044520.

The previous prime is 45551941. The next prime is 45551951. The reversal of 45551947 is 74915554.

45551947 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 not a de Polignac number, because 45551947 - 2³ = 45551939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45551941) 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, 3253704 + ... + 3253717.

It is an arithmetic number, because the mean of its divisors is an integer number (13014844).

Almost surely, 2^45551947 is an apocalyptic number.

45551947 is a deficient number, since it is larger than the sum of its proper divisors (6507429).

45551947 is an equidigital number, since it uses as much as digits as its factorization.

45551947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6507428.

The product of its digits is 126000, while the sum is 40.

The square root of 45551947 is about 6749.2182510273. The cubic root of 45551947 is about 357.1376595129.

The spelling of 45551947 in words is "forty-five million, five hundred fifty-one thousand, nine hundred forty-seven".