51425852415 has 64 divisors (see below), whose sum is σ = 97181859840. Its totient is φ = 22724219520.

The previous prime is 51425852383. The next prime is 51425852437.

51425852415 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51425852415 - 2⁵ = 51425852383 is a prime.

It is a super-2 number, since 2×51425852415² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2943576 + ... + 2960994.

It is an arithmetic number, because the mean of its divisors is an integer number (1518466560).

Almost surely, 2^51425852415 is an apocalyptic number.

51425852415 is a deficient number, since it is larger than the sum of its proper divisors (45756007425).

51425852415 is a wasteful number, since it uses less digits than its factorization.

51425852415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18372.

The product of its digits is 320000, while the sum is 42.

It can be divided in two parts, 51425 and 852415, that added together give a triangular number (903840 = T₁₃₄₄).

The spelling of 51425852415 in words is "fifty-one billion, four hundred twenty-five million, eight hundred fifty-two thousand, four hundred fifteen".