51247422474215 has 16 divisors (see below), whose sum is σ = 67200667354656. Its totient is φ = 37208001331200.

The previous prime is 51247422474173. The next prime is 51247422474223.

It is a happy number.

51247422474215 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51247422474215 - 2¹⁸ = 51247422212071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 785609306 + ... + 785674535.

It is an arithmetic number, because the mean of its divisors is an integer number (4200041709666).

Almost surely, 2^{51247422474215} is an apocalyptic number.

51247422474215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51247422474215 is a deficient number, since it is larger than the sum of its proper divisors (15953244880441).

51247422474215 is a wasteful number, since it uses less digits than its factorization.

51247422474215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571284450.

The product of its digits is 5017600, while the sum is 50.

It can be divided in two parts, 5124742 and 2474215, that added together give a palindrome (7598957).

The spelling of 51247422474215 in words is "fifty-one trillion, two hundred forty-seven billion, four hundred twenty-two million, four hundred seventy-four thousand, two hundred fifteen".