51100251155 has 8 divisors (see below), whose sum is σ = 61322504112. Its totient is φ = 40878732448.

The previous prime is 51100251133. The next prime is 51100251247. The reversal of 51100251155 is 55115200115.

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

It is a cyclic number.

It is not a de Polignac number, because 51100251155 - 2¹⁸ = 51099989011 is a prime.

It is a super-2 number, since 2×51100251155² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16652 + ... + 320121.

It is an arithmetic number, because the mean of its divisors is an integer number (7665313014).

Almost surely, 2^51100251155 is an apocalyptic number.

51100251155 is a deficient number, since it is larger than the sum of its proper divisors (10222252957).

51100251155 is a wasteful number, since it uses less digits than its factorization.

51100251155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367125.

The product of its (nonzero) digits is 1250, while the sum is 26.

The spelling of 51100251155 in words is "fifty-one billion, one hundred million, two hundred fifty-one thousand, one hundred fifty-five".