50878399 has 16 divisors (see below), whose sum is σ = 63292320. Its totient is φ = 40181760.

The previous prime is 50878397. The next prime is 50878427. The reversal of 50878399 is 99387805.

It is a cyclic number.

It is not a de Polignac number, because 50878399 - 2¹ = 50878397 is a prime.

It is a super-2 number, since 2×50878399² = 5177222969606402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50878397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8034 + ... + 12895.

It is an arithmetic number, because the mean of its divisors is an integer number (3955770).

Almost surely, 2^50878399 is an apocalyptic number.

50878399 is a deficient number, since it is larger than the sum of its proper divisors (12413921).

50878399 is a wasteful number, since it uses less digits than its factorization.

50878399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20970.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 50878399 is about 7132.9095746406. The cubic root of 50878399 is about 370.5480046077.

The spelling of 50878399 in words is "fifty million, eight hundred seventy-eight thousand, three hundred ninety-nine".