513455922 has 80 divisors (see below), whose sum is σ = 1328196672. Its totient is φ = 145216800.

The previous prime is 513455911. The next prime is 513455923. The reversal of 513455922 is 229554315.

It is a happy number.

513455922 is a `hidden beast` number, since 51 + 34 + 559 + 22 = 666.

It is not an unprimeable number, because it can be changed into a prime (513455923) 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 39 ways as a sum of consecutive naturals, for example, 112293 + ... + 116775.

Almost surely, 2^513455922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513455922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664098336).

513455922 is an abundant number, since it is smaller than the sum of its proper divisors (814740750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513455922 is a wasteful number, since it uses less digits than its factorization.

513455922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4605 (or 4596 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 513455922 is about 22659.5657946043. The cubic root of 513455922 is about 800.7575750819.

The spelling of 513455922 in words is "five hundred thirteen million, four hundred fifty-five thousand, nine hundred twenty-two".