51551527672 has 64 divisors (see below), whose sum is σ = 98794080000. Its totient is φ = 25213943040.

The previous prime is 51551527667. The next prime is 51551527739. The reversal of 51551527672 is 27672515515.

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, 40945779 + ... + 40947037.

It is an arithmetic number, because the mean of its divisors is an integer number (1543657500).

Almost surely, 2^51551527672 is an apocalyptic number.

It is an amenable number.

51551527672 is a deficient number, since it is larger than the sum of its proper divisors (47242552328).

51551527672 is a wasteful number, since it uses less digits than its factorization.

51551527672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924 (or 1920 counting only the distinct ones).

The product of its digits is 735000, while the sum is 46.

The spelling of 51551527672 in words is "fifty-one billion, five hundred fifty-one million, five hundred twenty-seven thousand, six hundred seventy-two".