51714287505 has 48 divisors (see below), whose sum is σ = 91165196304. Its totient is φ = 27111651840.

The previous prime is 51714287503. The next prime is 51714287561. The reversal of 51714287505 is 50578241715.

51714287505 is a `hidden beast` number, since 5 + 171 + 428 + 7 + 50 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 7609247361 + 44105040144 = 87231^2 + 210012^2 .

It is not a de Polignac number, because 51714287505 - 2¹ = 51714287503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (51714287503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5147347 + ... + 5157383.

It is an arithmetic number, because the mean of its divisors is an integer number (1899274923).

Almost surely, 2^51714287505 is an apocalyptic number.

It is an amenable number.

51714287505 is a deficient number, since it is larger than the sum of its proper divisors (39450908799).

51714287505 is a wasteful number, since it uses less digits than its factorization.

51714287505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11986 (or 11983 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 45.

The spelling of 51714287505 in words is "fifty-one billion, seven hundred fourteen million, two hundred eighty-seven thousand, five hundred five".