50969811 has 4 divisors (see below), whose sum is σ = 67959752. Its totient is φ = 33979872.

The previous prime is 50969803. The next prime is 50969819. The reversal of 50969811 is 11896905.

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

It is an interprime number because it is at equal distance from previous prime (50969803) and next prime (50969819).

It is not a de Polignac number, because 50969811 - 2³ = 50969803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50969811.

It is not an unprimeable number, because it can be changed into a prime (50969819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8494966 + ... + 8494971.

It is an arithmetic number, because the mean of its divisors is an integer number (16989938).

Almost surely, 2^50969811 is an apocalyptic number.

50969811 is a deficient number, since it is larger than the sum of its proper divisors (16989941).

50969811 is a wasteful number, since it uses less digits than its factorization.

50969811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16989940.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 50969811 is about 7139.3144628879. The cubic root of 50969811 is about 370.7697900746.

The spelling of 50969811 in words is "fifty million, nine hundred sixty-nine thousand, eight hundred eleven".