51554525012 has 12 divisors (see below), whose sum is σ = 90492990336. Its totient is φ = 25699384920.

The previous prime is 51554525003. The next prime is 51554525051. The reversal of 51554525012 is 21052545515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19467908 + ... + 19470555.

It is an arithmetic number, because the mean of its divisors is an integer number (7541082528).

Almost surely, 2^51554525012 is an apocalyptic number.

It is an amenable number.

51554525012 is a deficient number, since it is larger than the sum of its proper divisors (38938465324).

51554525012 is a wasteful number, since it uses less digits than its factorization.

51554525012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38938798 (or 38938796 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 35.

The spelling of 51554525012 in words is "fifty-one billion, five hundred fifty-four million, five hundred twenty-five thousand, twelve".