513225504164 has 12 divisors (see below), whose sum is σ = 922418811804. Its totient is φ = 249677272224.

The previous prime is 513225504139. The next prime is 513225504167. The reversal of 513225504164 is 461405522315.

It can be written as a sum of positive squares in 2 ways, for example, as 313230508900 + 199994995264 = 559670^2 + 447208^2 .

It is not an unprimeable number, because it can be changed into a prime (513225504167) 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, 1733869799 + ... + 1733870094.

It is an arithmetic number, because the mean of its divisors is an integer number (76868234317).

Almost surely, 2^513225504164 is an apocalyptic number.

It is an amenable number.

513225504164 is a deficient number, since it is larger than the sum of its proper divisors (409193307640).

513225504164 is a wasteful number, since it uses less digits than its factorization.

513225504164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3467739934 (or 3467739932 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 513225504164 in words is "five hundred thirteen billion, two hundred twenty-five million, five hundred four thousand, one hundred sixty-four".