51051000505608 has 64 divisors (see below), whose sum is σ = 141815119752000. Its totient is φ = 17016185966976.

The previous prime is 51051000505579. The next prime is 51051000505633. The reversal of 51051000505608 is 80650500015015.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 15 ways as a sum of consecutive naturals, for example, 1120885 + ... + 10166532.

It is an arithmetic number, because the mean of its divisors is an integer number (2215861246125).

Almost surely, 2^{51051000505608} is an apocalyptic number.

It is an amenable number.

51051000505608 is an abundant number, since it is smaller than the sum of its proper divisors (90764119246392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51051000505608 is a wasteful number, since it uses less digits than its factorization.

51051000505608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11308371 (or 11308361 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

The spelling of 51051000505608 in words is "fifty-one trillion, fifty-one billion, five hundred five thousand, six hundred eight".