51138350 has 36 divisors (see below), whose sum is σ = 97394064. Its totient is φ = 19976880.

The previous prime is 51138349. The next prime is 51138377. The reversal of 51138350 is 5383115.

51138350 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 110219 + ... + 110681.

Almost surely, 2^51138350 is an apocalyptic number.

51138350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51138350 is a deficient number, since it is larger than the sum of its proper divisors (46255714).

51138350 is a wasteful number, since it uses less digits than its factorization.

51138350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 51138350 is about 7151.1083057104. The cubic root of 51138350 is about 371.1780083133.

The spelling of 51138350 in words is "fifty-one million, one hundred thirty-eight thousand, three hundred fifty".