451255513 has 4 divisors (see below), whose sum is σ = 451375668. Its totient is φ = 451135360.

The previous prime is 451255447. The next prime is 451255537. The reversal of 451255513 is 315552154.

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 355058649 + 96196864 = 18843^2 + 9808^2 .

It is a cyclic number.

It is not a de Polignac number, because 451255513 - 2¹⁷ = 451124441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451252513) 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 in 3 ways as a sum of consecutive naturals, for example, 54256 + ... + 62017.

It is an arithmetic number, because the mean of its divisors is an integer number (112843917).

Almost surely, 2^451255513 is an apocalyptic number.

It is an amenable number.

451255513 is a deficient number, since it is larger than the sum of its proper divisors (120155).

451255513 is a wasteful number, since it uses less digits than its factorization.

451255513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120154.

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

The square root of 451255513 is about 21242.7755484070. The cubic root of 451255513 is about 767.0214457756.

It can be divided in two parts, 4512 and 55513, that added together give a square (60025 = 245²).

The spelling of 451255513 in words is "four hundred fifty-one million, two hundred fifty-five thousand, five hundred thirteen".