51194950 has 24 divisors (see below), whose sum is σ = 98297280. Its totient is φ = 19816800.

The previous prime is 51194933. The next prime is 51194959. The reversal of 51194950 is 5949115.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51194959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14965 + ... + 18064.

It is an arithmetic number, because the mean of its divisors is an integer number (4095720).

Almost surely, 2^51194950 is an apocalyptic number.

51194950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51194950 is a deficient number, since it is larger than the sum of its proper divisors (47102330).

51194950 is a wasteful number, since it uses less digits than its factorization.

51194950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33072 (or 33067 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 51194950 is about 7155.0646398198. The cubic root of 51194950 is about 371.3148979420.

The spelling of 51194950 in words is "fifty-one million, one hundred ninety-four thousand, nine hundred fifty".