513855465 has 16 divisors (see below), whose sum is σ = 839662848. Its totient is φ = 268224896.

The previous prime is 513855431. The next prime is 513855467. The reversal of 513855465 is 564558315.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 513855465 - 2⁹ = 513854953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (513855467) 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 15 ways as a sum of consecutive naturals, for example, 363732 + ... + 365141.

It is an arithmetic number, because the mean of its divisors is an integer number (52478928).

Almost surely, 2^513855465 is an apocalyptic number.

It is an amenable number.

513855465 is a deficient number, since it is larger than the sum of its proper divisors (325807383).

513855465 is a wasteful number, since it uses less digits than its factorization.

513855465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728928.

The product of its digits is 360000, while the sum is 42.

The square root of 513855465 is about 22668.3802906163. The cubic root of 513855465 is about 800.9652229832.

The spelling of 513855465 in words is "five hundred thirteen million, eight hundred fifty-five thousand, four hundred sixty-five".