51471337125385 has 32 divisors (see below), whose sum is σ = 64787827387392. Its totient is φ = 39209808314880.

The previous prime is 51471337125353. The next prime is 51471337125419. The reversal of 51471337125385 is 58352173317415.

It is not a de Polignac number, because 51471337125385 - 2⁵ = 51471337125353 is a prime.

It is a super-2 number, since 2×51471337125385² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189963405 + ... + 190234165.

It is an arithmetic number, because the mean of its divisors is an integer number (2024619605856).

Almost surely, 2^{51471337125385} is an apocalyptic number.

It is an amenable number.

51471337125385 is a deficient number, since it is larger than the sum of its proper divisors (13316490262007).

51471337125385 is a wasteful number, since it uses less digits than its factorization.

51471337125385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292713.

The product of its digits is 10584000, while the sum is 55.

The spelling of 51471337125385 in words is "fifty-one trillion, four hundred seventy-one billion, three hundred thirty-seven million, one hundred twenty-five thousand, three hundred eighty-five".