50917398 has 16 divisors (see below), whose sum is σ = 116382720. Its totient is φ = 14547816.

The previous prime is 50917393. The next prime is 50917409. The reversal of 50917398 is 89371905.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1212319 = 50917398 / (5 + 0 + 9 + 1 + 7 + 3 + 9 + 8).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50917393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606118 + ... + 606201.

It is an arithmetic number, because the mean of its divisors is an integer number (7273920).

Almost surely, 2^50917398 is an apocalyptic number.

50917398 is an abundant number, since it is smaller than the sum of its proper divisors (65465322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50917398 is a wasteful number, since it uses less digits than its factorization.

50917398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212331.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 50917398 is about 7135.6427881446. The cubic root of 50917398 is about 370.6426571596.

It can be divided in two parts, 50917 and 398, that added together give a palindrome (51315).

The spelling of 50917398 in words is "fifty million, nine hundred seventeen thousand, three hundred ninety-eight".