8212510513 has 4 divisors (see below), whose sum is σ = 8258390640. Its totient is φ = 8166630388.

The previous prime is 8212510489. The next prime is 8212510517. The reversal of 8212510513 is 3150152128.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8212510513 is a prime.

It is a super-2 number, since 2×8212510513² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8212510517) 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, 22939795 + ... + 22940152.

It is an arithmetic number, because the mean of its divisors is an integer number (2064597660).

Almost surely, 2^8212510513 is an apocalyptic number.

It is an amenable number.

8212510513 is a deficient number, since it is larger than the sum of its proper divisors (45880127).

8212510513 is a wasteful number, since it uses less digits than its factorization.

8212510513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45880126.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 8212510513 is about 90622.9028060788. The cubic root of 8212510513 is about 2017.5546752906.

The spelling of 8212510513 in words is "eight billion, two hundred twelve million, five hundred ten thousand, five hundred thirteen".