51061501056001 has 4 divisors (see below), whose sum is σ = 51538711346352. Its totient is φ = 50584290765652.

The previous prime is 51061501055977. The next prime is 51061501056053. The reversal of 51061501056001 is 10065010516015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51061501056001 - 2²¹ = 51061498958849 is a prime.

It is a super-2 number, since 2×51061501056001² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51061501056901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238605145015 + ... + 238605145228.

It is an arithmetic number, because the mean of its divisors is an integer number (12884677836588).

Almost surely, 2^{51061501056001} is an apocalyptic number.

It is an amenable number.

51061501056001 is a deficient number, since it is larger than the sum of its proper divisors (477210290351).

51061501056001 is a wasteful number, since it uses less digits than its factorization.

51061501056001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477210290350.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 51061501056001 in words is "fifty-one trillion, sixty-one billion, five hundred one million, fifty-six thousand, one".