51025125345 has 16 divisors (see below), whose sum is σ = 82858712640. Its totient is φ = 26807229504.

The previous prime is 51025125331. The next prime is 51025125409. The reversal of 51025125345 is 54352152015.

It is not a de Polignac number, because 51025125345 - 2⁴ = 51025125329 is a prime.

It is a super-2 number, since 2×51025125345² (a number of 22 digits) contains 22 as substring.

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, 25384630 + ... + 25386639.

It is an arithmetic number, because the mean of its divisors is an integer number (5178669540).

Almost surely, 2^51025125345 is an apocalyptic number.

It is an amenable number.

51025125345 is a deficient number, since it is larger than the sum of its proper divisors (31833587295).

51025125345 is a wasteful number, since it uses less digits than its factorization.

51025125345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50771344.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 51025125345 in words is "fifty-one billion, twenty-five million, one hundred twenty-five thousand, three hundred forty-five".