50123390 has 16 divisors (see below), whose sum is σ = 90305280. Its totient is φ = 20030880.

The previous prime is 50123389. The next prime is 50123407. The reversal of 50123390 is 9332105.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15971 + ... + 18849.

It is an arithmetic number, because the mean of its divisors is an integer number (5644080).

Almost surely, 2^50123390 is an apocalyptic number.

50123390 is a deficient number, since it is larger than the sum of its proper divisors (40181890).

50123390 is a wasteful number, since it uses less digits than its factorization.

50123390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4627.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 50123390 is about 7079.7874261873. The cubic root of 50123390 is about 368.7059493487.

Adding to 50123390 its reverse (9332105), we get a palindrome (59455495).

The spelling of 50123390 in words is "fifty million, one hundred twenty-three thousand, three hundred ninety".