50698649 has 2 divisors, whose sum is σ = 50698650. Its totient is φ = 50698648.

The previous prime is 50698639. The next prime is 50698657. The reversal of 50698649 is 94689605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45091225 + 5607424 = 6715^2 + 2368^2 .

It is a cyclic number.

It is not a de Polignac number, because 50698649 - 2⁸ = 50698393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50698619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25349324 + 25349325.

It is an arithmetic number, because the mean of its divisors is an integer number (25349325).

Almost surely, 2^50698649 is an apocalyptic number.

It is an amenable number.

50698649 is a deficient number, since it is larger than the sum of its proper divisors (1).

50698649 is an equidigital number, since it uses as much as digits as its factorization.

50698649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 50698649 is about 7120.2983785794. The cubic root of 50698649 is about 370.1111158845. Note that the first 5 decimals are identical.

The spelling of 50698649 in words is "fifty million, six hundred ninety-eight thousand, six hundred forty-nine".