512002055651 has 4 divisors (see below), whose sum is σ = 513948831792. Its totient is φ = 510055279512.

The previous prime is 512002055639. The next prime is 512002055731. The reversal of 512002055651 is 156550200215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156550200215 = 5 ⋅31310040043.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512002055651 is a prime.

It is a super-2 number, since 2×512002055651² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512002054651) 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, 973387676 + ... + 973388201.

It is an arithmetic number, because the mean of its divisors is an integer number (128487207948).

Almost surely, 2^512002055651 is an apocalyptic number.

512002055651 is a deficient number, since it is larger than the sum of its proper divisors (1946776141).

512002055651 is a wasteful number, since it uses less digits than its factorization.

512002055651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946776140.

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 512002055651 its reverse (156550200215), we get a palindrome (668552255866).

The spelling of 512002055651 in words is "five hundred twelve billion, two million, fifty-five thousand, six hundred fifty-one".