51166299 has 4 divisors (see below), whose sum is σ = 68221736. Its totient is φ = 34110864.

The previous prime is 51166279. The next prime is 51166303. The reversal of 51166299 is 99266115.

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

It is not a de Polignac number, because 51166299 - 2⁵ = 51166267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51166229) 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, 8527714 + ... + 8527719.

It is an arithmetic number, because the mean of its divisors is an integer number (17055434).

Almost surely, 2^51166299 is an apocalyptic number.

51166299 is a deficient number, since it is larger than the sum of its proper divisors (17055437).

51166299 is a wasteful number, since it uses less digits than its factorization.

51166299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17055436.

The product of its digits is 29160, while the sum is 39.

The square root of 51166299 is about 7153.0622113889. The cubic root of 51166299 is about 371.2456168354.

The spelling of 51166299 in words is "fifty-one million, one hundred sixty-six thousand, two hundred ninety-nine".