51100510605501 has 16 divisors (see below), whose sum is σ = 77867555472000. Its totient is φ = 29200250247168.

The previous prime is 51100510605499. The next prime is 51100510605509. The reversal of 51100510605501 is 10550601500115.

It is not a de Polignac number, because 51100510605501 - 2¹ = 51100510605499 is a prime.

It is a super-2 number, since 2×51100510605501² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51100510605509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19373425 + ... + 21852473.

It is an arithmetic number, because the mean of its divisors is an integer number (4866722217000).

Almost surely, 2^{51100510605501} is an apocalyptic number.

It is an amenable number.

51100510605501 is a deficient number, since it is larger than the sum of its proper divisors (26767044866499).

51100510605501 is a wasteful number, since it uses less digits than its factorization.

51100510605501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460628.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 51100510605501 in words is "fifty-one trillion, one hundred billion, five hundred ten million, six hundred five thousand, five hundred one".