45512451115 has 4 divisors (see below), whose sum is σ = 54614941344. Its totient is φ = 36409960888.

The previous prime is 45512451113. The next prime is 45512451151. The reversal of 45512451115 is 51115421554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51115421554 = 2 ⋅25557710777.

It is a cyclic number.

It is not a de Polignac number, because 45512451115 - 2¹ = 45512451113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45512451113) 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, 4551245107 + ... + 4551245116.

It is an arithmetic number, because the mean of its divisors is an integer number (13653735336).

Almost surely, 2^45512451115 is an apocalyptic number.

45512451115 is a deficient number, since it is larger than the sum of its proper divisors (9102490229).

45512451115 is an equidigital number, since it uses as much as digits as its factorization.

45512451115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9102490228.

The product of its digits is 20000, while the sum is 34.

Adding to 45512451115 its reverse (51115421554), we get a palindrome (96627872669).

The spelling of 45512451115 in words is "forty-five billion, five hundred twelve million, four hundred fifty-one thousand, one hundred fifteen".