45055427 has 4 divisors (see below), whose sum is σ = 45101616. Its totient is φ = 45009240.

The previous prime is 45055421. The next prime is 45055429. The reversal of 45055427 is 72455054.

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 45055427 - 2⁶ = 45055363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45055393 and 45055402.

It is not an unprimeable number, because it can be changed into a prime (45055421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21599 + ... + 23592.

It is an arithmetic number, because the mean of its divisors is an integer number (11275404).

Almost surely, 2^45055427 is an apocalyptic number.

45055427 is a deficient number, since it is larger than the sum of its proper divisors (46189).

45055427 is an equidigital number, since it uses as much as digits as its factorization.

45055427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46188.

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 45055427 is about 6712.3339458045. Note that the first 3 decimals coincide. The cubic root of 45055427 is about 355.8353060323.

The spelling of 45055427 in words is "forty-five million, fifty-five thousand, four hundred twenty-seven".