50723149 has 2 divisors, whose sum is σ = 50723150. Its totient is φ = 50723148.

The previous prime is 50723137. The next prime is 50723159. The reversal of 50723149 is 94132705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27510025 + 23213124 = 5245^2 + 4818^2 .

It is a cyclic number.

It is not a de Polignac number, because 50723149 - 2⁷ = 50723021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50723149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50723129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25361574 + 25361575.

It is an arithmetic number, because the mean of its divisors is an integer number (25361575).

Almost surely, 2^50723149 is an apocalyptic number.

It is an amenable number.

50723149 is a deficient number, since it is larger than the sum of its proper divisors (1).

50723149 is an equidigital number, since it uses as much as digits as its factorization.

50723149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 50723149 is about 7122.0186043003. The cubic root of 50723149 is about 370.1707247186.

The spelling of 50723149 in words is "fifty million, seven hundred twenty-three thousand, one hundred forty-nine".