50135391 has 12 divisors (see below), whose sum is σ = 73232640. Its totient is φ = 33047520.

The previous prime is 50135389. The next prime is 50135429. The reversal of 50135391 is 19353105.

It is not a de Polignac number, because 50135391 - 2¹ = 50135389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50135311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30495 + ... + 32096.

It is an arithmetic number, because the mean of its divisors is an integer number (6102720).

Almost surely, 2^50135391 is an apocalyptic number.

50135391 is a deficient number, since it is larger than the sum of its proper divisors (23097249).

50135391 is a wasteful number, since it uses less digits than its factorization.

50135391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62686 (or 62683 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 27.

The square root of 50135391 is about 7080.6349291571. The cubic root of 50135391 is about 368.7353733162.

Adding to 50135391 its reverse (19353105), we get a palindrome (69488496).

It can be divided in two parts, 5013 and 5391, that added together give a square (10404 = 102²).

The spelling of 50135391 in words is "fifty million, one hundred thirty-five thousand, three hundred ninety-one".