51711214801 has 9 divisors (see below), whose sum is σ = 54062749321. Its totient is φ = 49457898292.

The previous prime is 51711214783. The next prime is 51711214883. The reversal of 51711214801 is 10841211715.

The square root of 51711214801 is 227401.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 51711214801 - 2¹⁹ = 51710690513 is a prime.

It is a super-2 number, since 2×51711214801² (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 (51711214201) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5225280 + ... + 5235166.

Almost surely, 2^51711214801 is an apocalyptic number.

51711214801 is the 227401-st square number.

51711214801 is the 113701-st centered octagonal number.

It is an amenable number.

51711214801 is a deficient number, since it is larger than the sum of its proper divisors (2351534520).

51711214801 is an frugal number, since it uses more digits than its factorization.

51711214801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19820 (or 9910 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 31.

The spelling of 51711214801 in words is "fifty-one billion, seven hundred eleven million, two hundred fourteen thousand, eight hundred one".