45505013 has 2 divisors, whose sum is σ = 45505014. Its totient is φ = 45505012.

The previous prime is 45505007. The next prime is 45505069. The reversal of 45505013 is 31050554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38651089 + 6853924 = 6217^2 + 2618^2 .

It is a cyclic number.

It is not a de Polignac number, because 45505013 - 2⁸ = 45504757 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45505013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45505003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22752506 + 22752507.

It is an arithmetic number, because the mean of its divisors is an integer number (22752507).

Almost surely, 2^45505013 is an apocalyptic number.

It is an amenable number.

45505013 is a deficient number, since it is larger than the sum of its proper divisors (1).

45505013 is an equidigital number, since it uses as much as digits as its factorization.

45505013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 45505013 is about 6745.7403596640. The cubic root of 45505013 is about 357.0149596056.

Adding to 45505013 its reverse (31050554), we get a palindrome (76555567).

The spelling of 45505013 in words is "forty-five million, five hundred five thousand, thirteen".