51149914 has 4 divisors (see below), whose sum is σ = 76724874. Its totient is φ = 25574956.

The previous prime is 51149911. The next prime is 51149963. The reversal of 51149914 is 41994115.

51149914 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 can be written as a sum of positive squares in only one way, i.e., 27384289 + 23765625 = 5233^2 + 4875^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51149914.

It is not an unprimeable number, because it can be changed into a prime (51149911) 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 as a sum of consecutive naturals, namely, 12787477 + ... + 12787480.

Almost surely, 2^51149914 is an apocalyptic number.

51149914 is a deficient number, since it is larger than the sum of its proper divisors (25574960).

51149914 is a wasteful number, since it uses less digits than its factorization.

51149914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25574959.

The product of its digits is 6480, while the sum is 34.

The square root of 51149914 is about 7151.9168060038. The cubic root of 51149914 is about 371.2059845711.

The spelling of 51149914 in words is "fifty-one million, one hundred forty-nine thousand, nine hundred fourteen".