51025235506 has 8 divisors (see below), whose sum is σ = 87471832320. Its totient is φ = 21867958068.

The previous prime is 51025235489. The next prime is 51025235533. The reversal of 51025235506 is 60553252015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1822329826 + ... + 1822329853.

It is an arithmetic number, because the mean of its divisors is an integer number (10933979040).

Almost surely, 2^51025235506 is an apocalyptic number.

51025235506 is a deficient number, since it is larger than the sum of its proper divisors (36446596814).

51025235506 is a wasteful number, since it uses less digits than its factorization.

51025235506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3644659688.

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 51025235506 in words is "fifty-one billion, twenty-five million, two hundred thirty-five thousand, five hundred six".