50520149 has 2 divisors, whose sum is σ = 50520150. Its totient is φ = 50520148.

The previous prime is 50520143. The next prime is 50520179. The reversal of 50520149 is 94102505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42640900 + 7879249 = 6530^2 + 2807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50520149 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50520143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25260074 + 25260075.

It is an arithmetic number, because the mean of its divisors is an integer number (25260075).

Almost surely, 2^50520149 is an apocalyptic number.

It is an amenable number.

50520149 is a deficient number, since it is larger than the sum of its proper divisors (1).

50520149 is an equidigital number, since it uses as much as digits as its factorization.

50520149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 50520149 is about 7107.7527390871. The cubic root of 50520149 is about 369.6762422321.

The spelling of 50520149 in words is "fifty million, five hundred twenty thousand, one hundred forty-nine".