51454170506155 has 4 divisors (see below), whose sum is σ = 61745004607392. Its totient is φ = 41163336404920.

The previous prime is 51454170506131. The next prime is 51454170506161. The reversal of 51454170506155 is 55160507145415.

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

It is not a de Polignac number, because 51454170506155 - 2³¹ = 51452023022507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51454170506099 and 51454170506108.

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, 5145417050611 + ... + 5145417050620.

It is an arithmetic number, because the mean of its divisors is an integer number (15436251151848).

Almost surely, 2^{51454170506155} is an apocalyptic number.

51454170506155 is a deficient number, since it is larger than the sum of its proper divisors (10290834101237).

51454170506155 is a wasteful number, since it uses less digits than its factorization.

51454170506155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10290834101236.

The product of its (nonzero) digits is 2100000, while the sum is 49.

The spelling of 51454170506155 in words is "fifty-one trillion, four hundred fifty-four billion, one hundred seventy million, five hundred six thousand, one hundred fifty-five".