51100500060605 has 4 divisors (see below), whose sum is σ = 61320600072732. Its totient is φ = 40880400048480.

The previous prime is 51100500060563. The next prime is 51100500060647. The reversal of 51100500060605 is 50606000500115.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (51100500060563) and next prime (51100500060647).

It can be written as a sum of positive squares in 2 ways, for example, as 15693751633156 + 35406748427449 = 3961534^2 + 5950357^2 .

It is not a de Polignac number, because 51100500060605 - 2⁸ = 51100500060349 is a prime.

It is a super-2 number, since 2×51100500060605² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 5110050006056 + ... + 5110050006065.

It is an arithmetic number, because the mean of its divisors is an integer number (15330150018183).

Almost surely, 2^{51100500060605} is an apocalyptic number.

It is an amenable number.

51100500060605 is a deficient number, since it is larger than the sum of its proper divisors (10220100012127).

51100500060605 is a wasteful number, since it uses less digits than its factorization.

51100500060605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220100012126.

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

The spelling of 51100500060605 in words is "fifty-one trillion, one hundred billion, five hundred million, sixty thousand, six hundred five".