45505042331 has 4 divisors (see below), whose sum is σ = 52005762672. Its totient is φ = 39004321992.

The previous prime is 45505042327. The next prime is 45505042367. The reversal of 45505042331 is 13324050554.

It is a happy number.

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 45505042331 - 2² = 45505042327 is a prime.

It is a super-2 number, since 2×45505042331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45505042391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3250360160 + ... + 3250360173.

It is an arithmetic number, because the mean of its divisors is an integer number (13001440668).

Almost surely, 2^45505042331 is an apocalyptic number.

45505042331 is a deficient number, since it is larger than the sum of its proper divisors (6500720341).

45505042331 is an equidigital number, since it uses as much as digits as its factorization.

45505042331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500720340.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 45505042331 its reverse (13324050554), we get a palindrome (58829092885).

The spelling of 45505042331 in words is "forty-five billion, five hundred five million, forty-two thousand, three hundred thirty-one".