50021407 has 2 divisors, whose sum is σ = 50021408. Its totient is φ = 50021406.

The previous prime is 50021369. The next prime is 50021431. The reversal of 50021407 is 70412005.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50021407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50021437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25010703 + 25010704.

It is an arithmetic number, because the mean of its divisors is an integer number (25010704).

Almost surely, 2^50021407 is an apocalyptic number.

50021407 is a deficient number, since it is larger than the sum of its proper divisors (1).

50021407 is an equidigital number, since it uses as much as digits as its factorization.

50021407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 50021407 is about 7072.5813533674. The cubic root of 50021407 is about 368.4557184040.

The spelling of 50021407 in words is "fifty million, twenty-one thousand, four hundred seven".