51106193 has 4 divisors (see below), whose sum is σ = 51869040. Its totient is φ = 50343348.

The previous prime is 51106183. The next prime is 51106217. The reversal of 51106193 is 39160115.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39160115 = 5 ⋅7832023.

It is a cyclic number.

It is not a de Polignac number, because 51106193 - 2⁴ = 51106177 is a prime.

It is a super-2 number, since 2×51106193² = 5223685925906498, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51106183) 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, 381323 + ... + 381456.

It is an arithmetic number, because the mean of its divisors is an integer number (12967260).

Almost surely, 2^51106193 is an apocalyptic number.

It is an amenable number.

51106193 is a deficient number, since it is larger than the sum of its proper divisors (762847).

51106193 is an equidigital number, since it uses as much as digits as its factorization.

51106193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762846.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 51106193 is about 7148.8595593983. The cubic root of 51106193 is about 371.1001901726.

The spelling of 51106193 in words is "fifty-one million, one hundred six thousand, one hundred ninety-three".