45550131205 has 4 divisors (see below), whose sum is σ = 54660157452. Its totient is φ = 36440104960.

The previous prime is 45550131131. The next prime is 45550131301. The reversal of 45550131205 is 50213105554.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10196354529 + 35353776676 = 100977^2 + 188026^2 .

It is a de Polignac number, because none of the positive numbers 2^k-45550131205 is a prime.

It is a super-3 number, since 3×45550131205³ (a number of 33 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4555013116 + ... + 4555013125.

It is an arithmetic number, because the mean of its divisors is an integer number (13665039363).

Almost surely, 2^45550131205 is an apocalyptic number.

It is an amenable number.

45550131205 is a deficient number, since it is larger than the sum of its proper divisors (9110026247).

45550131205 is an equidigital number, since it uses as much as digits as its factorization.

45550131205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9110026246.

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 45550131205 its reverse (50213105554), we get a palindrome (95763236759).

The spelling of 45550131205 in words is "forty-five billion, five hundred fifty million, one hundred thirty-one thousand, two hundred five".