51193286 has 4 divisors (see below), whose sum is σ = 76789932. Its totient is φ = 25596642.

The previous prime is 51193279. The next prime is 51193291. The reversal of 51193286 is 68239115.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12798320 + ... + 12798323.

It is an arithmetic number, because the mean of its divisors is an integer number (19197483).

Almost surely, 2^51193286 is an apocalyptic number.

51193286 is a deficient number, since it is larger than the sum of its proper divisors (25596646).

51193286 is a wasteful number, since it uses less digits than its factorization.

51193286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25596645.

The product of its digits is 12960, while the sum is 35.

The square root of 51193286 is about 7154.9483576054. The cubic root of 51193286 is about 371.3108749235.

The spelling of 51193286 in words is "fifty-one million, one hundred ninety-three thousand, two hundred eighty-six".