50215387 has 2 divisors, whose sum is σ = 50215388. Its totient is φ = 50215386.

The previous prime is 50215369. The next prime is 50215393. The reversal of 50215387 is 78351205.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50215387 - 2⁷ = 50215259 is a prime.

It is not a weakly prime, because it can be changed into another prime (50215367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25107693 + 25107694.

It is an arithmetic number, because the mean of its divisors is an integer number (25107694).

Almost surely, 2^50215387 is an apocalyptic number.

50215387 is a deficient number, since it is larger than the sum of its proper divisors (1).

50215387 is an equidigital number, since it uses as much as digits as its factorization.

50215387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 50215387 is about 7086.2816060329. The cubic root of 50215387 is about 368.9313870806.

The spelling of 50215387 in words is "fifty million, two hundred fifteen thousand, three hundred eighty-seven".