51025199 has 4 divisors (see below), whose sum is σ = 51367800. Its totient is φ = 50682600.

The previous prime is 51025187. The next prime is 51025207. The reversal of 51025199 is 99152015.

51025199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51025199 - 2⁸ = 51024943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51025129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171077 + ... + 171374.

It is an arithmetic number, because the mean of its divisors is an integer number (12841950).

Almost surely, 2^51025199 is an apocalyptic number.

51025199 is a deficient number, since it is larger than the sum of its proper divisors (342601).

51025199 is a wasteful number, since it uses less digits than its factorization.

51025199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342600.

The product of its (nonzero) digits is 4050, while the sum is 32.

The square root of 51025199 is about 7143.1924935564. The cubic root of 51025199 is about 370.9040444659.

It can be divided in two parts, 5102 and 5199, that added together give a palindrome (10301).

The spelling of 51025199 in words is "fifty-one million, twenty-five thousand, one hundred ninety-nine".