51005601056 has 24 divisors (see below), whose sum is σ = 100428355440. Its totient is φ = 25499987008.

The previous prime is 51005601029. The next prime is 51005601079. The reversal of 51005601056 is 65010650015.

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, 223655 + ... + 389913.

It is an arithmetic number, because the mean of its divisors is an integer number (4184514810).

Almost surely, 2^51005601056 is an apocalyptic number.

It is an amenable number.

51005601056 is a deficient number, since it is larger than the sum of its proper divisors (49422754384).

51005601056 is a wasteful number, since it uses less digits than its factorization.

51005601056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175856 (or 175848 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 51005601056 in words is "fifty-one billion, five million, six hundred one thousand, fifty-six".