50404687 has 2 divisors, whose sum is σ = 50404688. Its totient is φ = 50404686.

The previous prime is 50404631. The next prime is 50404721. The reversal of 50404687 is 78640405.

It is an a-pointer prime, because the next prime (50404721) can be obtained adding 50404687 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50404687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50404087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25202343 + 25202344.

It is an arithmetic number, because the mean of its divisors is an integer number (25202344).

Almost surely, 2^50404687 is an apocalyptic number.

50404687 is a deficient number, since it is larger than the sum of its proper divisors (1).

50404687 is an equidigital number, since it uses as much as digits as its factorization.

50404687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 50404687 is about 7099.6258352113. The cubic root of 50404687 is about 369.3944001175.

The spelling of 50404687 in words is "fifty million, four hundred four thousand, six hundred eighty-seven".