45504550451 has 4 divisors (see below), whose sum is σ = 45635687832. Its totient is φ = 45373413072.

The previous prime is 45504550439. The next prime is 45504550459. The reversal of 45504550451 is 15405540554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15405540554 = 2 ⋅7702770277.

It is a cyclic number.

It is not a de Polignac number, because 45504550451 - 2¹⁸ = 45504288307 is a prime.

It is a super-2 number, since 2×45504550451² (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 (45504550459) 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, 65568170 + ... + 65568863.

It is an arithmetic number, because the mean of its divisors is an integer number (11408921958).

Almost surely, 2^45504550451 is an apocalyptic number.

45504550451 is a deficient number, since it is larger than the sum of its proper divisors (131137381).

45504550451 is a wasteful number, since it uses less digits than its factorization.

45504550451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131137380.

The product of its (nonzero) digits is 200000, while the sum is 38.

The spelling of 45504550451 in words is "forty-five billion, five hundred four million, five hundred fifty thousand, four hundred fifty-one".