50779489 has 2 divisors, whose sum is σ = 50779490. Its totient is φ = 50779488.

The previous prime is 50779447. The next prime is 50779499. The reversal of 50779489 is 98497705.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50296464 + 483025 = 7092^2 + 695^2 .

It is a cyclic number.

It is not a de Polignac number, because 50779489 - 2⁹ = 50778977 is a prime.

It is a super-2 number, since 2×50779489² = 5157113006202242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50779409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25389744 + 25389745.

It is an arithmetic number, because the mean of its divisors is an integer number (25389745).

Almost surely, 2^50779489 is an apocalyptic number.

It is an amenable number.

50779489 is a deficient number, since it is larger than the sum of its proper divisors (1).

50779489 is an equidigital number, since it uses as much as digits as its factorization.

50779489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 50779489 is about 7125.9728458646. The cubic root of 50779489 is about 370.3077279225.

The spelling of 50779489 in words is "fifty million, seven hundred seventy-nine thousand, four hundred eighty-nine".