51772297627 has 16 divisors (see below), whose sum is σ = 53864801280. Its totient is φ = 49707496800.

The previous prime is 51772297567. The next prime is 51772297631. The reversal of 51772297627 is 72679227715.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51772297627 is a prime.

It is a super-2 number, since 2×51772297627² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51772297657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2447677 + ... + 2468737.

It is an arithmetic number, because the mean of its divisors is an integer number (3366550080).

Almost surely, 2^51772297627 is an apocalyptic number.

51772297627 is a deficient number, since it is larger than the sum of its proper divisors (2092503653).

51772297627 is a wasteful number, since it uses less digits than its factorization.

51772297627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21714.

The product of its digits is 5186160, while the sum is 55.

The spelling of 51772297627 in words is "fifty-one billion, seven hundred seventy-two million, two hundred ninety-seven thousand, six hundred twenty-seven".