50909951 has 6 divisors (see below), whose sum is σ = 54081120. Its totient is φ = 47914976.

The previous prime is 50909941. The next prime is 50909983. The reversal of 50909951 is 15990905.

It is a de Polignac number, because none of the positive numbers 2^k-50909951 is a prime.

It is a super-2 number, since 2×50909951² = 5183646221644802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50909941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87791 + ... + 88368.

It is an arithmetic number, because the mean of its divisors is an integer number (9013520).

Almost surely, 2^50909951 is an apocalyptic number.

50909951 is a deficient number, since it is larger than the sum of its proper divisors (3171169).

50909951 is a wasteful number, since it uses less digits than its factorization.

50909951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176193 (or 176176 counting only the distinct ones).

The product of its (nonzero) digits is 18225, while the sum is 38.

The square root of 50909951 is about 7135.1209520232. The cubic root of 50909951 is about 370.6245866470.

The spelling of 50909951 in words is "fifty million, nine hundred nine thousand, nine hundred fifty-one".