45500291 has 4 divisors (see below), whose sum is σ = 45600312. Its totient is φ = 45400272.

The previous prime is 45500261. The next prime is 45500311. The reversal of 45500291 is 19200554.

45500291 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 a de Polignac number, because none of the positive numbers 2^k-45500291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45500291.

It is not an unprimeable number, because it can be changed into a prime (45500261) 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, 49325 + ... + 50238.

It is an arithmetic number, because the mean of its divisors is an integer number (11400078).

Almost surely, 2^45500291 is an apocalyptic number.

45500291 is a deficient number, since it is larger than the sum of its proper divisors (100021).

45500291 is an equidigital number, since it uses as much as digits as its factorization.

45500291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100020.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 45500291 is about 6745.3903519366. The cubic root of 45500291 is about 357.0026101753.

The spelling of 45500291 in words is "forty-five million, five hundred thousand, two hundred ninety-one".