512552213 has 4 divisors (see below), whose sum is σ = 514402860. Its totient is φ = 510701568.

The previous prime is 512552203. The next prime is 512552221. The reversal of 512552213 is 312255215.

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 29343889 + 483208324 = 5417^2 + 21982^2 .

It is a cyclic number.

It is not a de Polignac number, because 512552213 - 2²⁰ = 511503637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512552203) 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, 924908 + ... + 925461.

It is an arithmetic number, because the mean of its divisors is an integer number (128600715).

Almost surely, 2^512552213 is an apocalyptic number.

It is an amenable number.

512552213 is a deficient number, since it is larger than the sum of its proper divisors (1850647).

512552213 is a wasteful number, since it uses less digits than its factorization.

512552213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850646.

The product of its digits is 3000, while the sum is 26.

The square root of 512552213 is about 22639.6160082277. The cubic root of 512552213 is about 800.2875075993.

The spelling of 512552213 in words is "five hundred twelve million, five hundred fifty-two thousand, two hundred thirteen".