51005715001 has 8 divisors (see below), whose sum is σ = 51083363520. Its totient is φ = 50928102288.

The previous prime is 51005714987. The next prime is 51005715041. The reversal of 51005715001 is 10051750015.

51005715001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51005715001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51005715041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4399230 + ... + 4410808.

It is an arithmetic number, because the mean of its divisors is an integer number (6385420440).

Almost surely, 2^51005715001 is an apocalyptic number.

It is an amenable number.

51005715001 is a deficient number, since it is larger than the sum of its proper divisors (77648519).

51005715001 is a wasteful number, since it uses less digits than its factorization.

51005715001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17903.

The product of its (nonzero) digits is 875, while the sum is 25.

The spelling of 51005715001 in words is "fifty-one billion, five million, seven hundred fifteen thousand, one".