50139430 has 32 divisors (see below), whose sum is σ = 99452448. Its totient is φ = 18048000.

The previous prime is 50139421. The next prime is 50139457. The reversal of 50139430 is 3493105.

50139430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 50139395 and 50139404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8854 + ... + 13366.

It is an arithmetic number, because the mean of its divisors is an integer number (3107889).

Almost surely, 2^50139430 is an apocalyptic number.

50139430 is a deficient number, since it is larger than the sum of its proper divisors (49313018).

50139430 is a wasteful number, since it uses less digits than its factorization.

50139430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4632.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 50139430 is about 7080.9201379482. The cubic root of 50139430 is about 368.7452750520.

The spelling of 50139430 in words is "fifty million, one hundred thirty-nine thousand, four hundred thirty".