50279399 has 4 divisors (see below), whose sum is σ = 50358480. Its totient is φ = 50200320.

The previous prime is 50279371. The next prime is 50279419. The reversal of 50279399 is 99397205.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99397205 = 5 ⋅19879441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50279399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50279329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38579 + ... + 39860.

It is an arithmetic number, because the mean of its divisors is an integer number (12589620).

Almost surely, 2^50279399 is an apocalyptic number.

50279399 is a deficient number, since it is larger than the sum of its proper divisors (79081).

50279399 is an equidigital number, since it uses as much as digits as its factorization.

50279399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79080.

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 50279399 is about 7090.7967817446. The cubic root of 50279399 is about 369.0880854529.

The spelling of 50279399 in words is "fifty million, two hundred seventy-nine thousand, three hundred ninety-nine".