455520013 has 4 divisors (see below), whose sum is σ = 490560028. Its totient is φ = 420480000.

The previous prime is 455520007. The next prime is 455520017. The reversal of 455520013 is 310025554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310025554 = 2 ⋅155012777.

It can be written as a sum of positive squares in 2 ways, for example, as 147938569 + 307581444 = 12163^2 + 17538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455520013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 455520013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455520017) 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, 17519988 + ... + 17520013.

It is an arithmetic number, because the mean of its divisors is an integer number (122640007).

Almost surely, 2^455520013 is an apocalyptic number.

It is an amenable number.

455520013 is a deficient number, since it is larger than the sum of its proper divisors (35040015).

455520013 is a wasteful number, since it uses less digits than its factorization.

455520013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35040014.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 455520013 is about 21342.9148196773. The cubic root of 455520013 is about 769.4300685031.

Adding to 455520013 its reverse (310025554), we get a palindrome (765545567).

The spelling of 455520013 in words is "four hundred fifty-five million, five hundred twenty thousand, thirteen".