45123425531 has 2 divisors, whose sum is σ = 45123425532. Its totient is φ = 45123425530.

The previous prime is 45123425519. The next prime is 45123425549. The reversal of 45123425531 is 13552432154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45123425531 - 2¹⁴ = 45123409147 is a prime.

It is a super-2 number, since 2×45123425531² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 45123425491 and 45123425500.

It is not a weakly prime, because it can be changed into another prime (45123425731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22561712765 + 22561712766.

It is an arithmetic number, because the mean of its divisors is an integer number (22561712766).

Almost surely, 2^45123425531 is an apocalyptic number.

45123425531 is a deficient number, since it is larger than the sum of its proper divisors (1).

45123425531 is an equidigital number, since it uses as much as digits as its factorization.

45123425531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 35.

Adding to 45123425531 its reverse (13552432154), we get a palindrome (58675857685).

The spelling of 45123425531 in words is "forty-five billion, one hundred twenty-three million, four hundred twenty-five thousand, five hundred thirty-one".