45545504231 has 4 divisors (see below), whose sum is σ = 45709928712. Its totient is φ = 45381079752.

The previous prime is 45545504197. The next prime is 45545504243. The reversal of 45545504231 is 13240554554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13240554554 = 2 ⋅6620277277.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45545504231 is a prime.

It is a super-2 number, since 2×45545504231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45545504281) 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, 82211825 + ... + 82212378.

It is an arithmetic number, because the mean of its divisors is an integer number (11427482178).

Almost surely, 2^45545504231 is an apocalyptic number.

45545504231 is a deficient number, since it is larger than the sum of its proper divisors (164424481).

45545504231 is a wasteful number, since it uses less digits than its factorization.

45545504231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164424480.

The product of its (nonzero) digits is 240000, while the sum is 38.

The spelling of 45545504231 in words is "forty-five billion, five hundred forty-five million, five hundred four thousand, two hundred thirty-one".