50136789 has 4 divisors (see below), whose sum is σ = 66849056. Its totient is φ = 33424524.

The previous prime is 50136787. The next prime is 50136799. The reversal of 50136789 is 98763105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 50136789 - 2¹ = 50136787 is a prime.

It is a super-2 number, since 2×50136789² = 5027395222461042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50136787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8356129 + ... + 8356134.

It is an arithmetic number, because the mean of its divisors is an integer number (16712264).

Almost surely, 2^50136789 is an apocalyptic number.

It is an amenable number.

50136789 is a deficient number, since it is larger than the sum of its proper divisors (16712267).

50136789 is a wasteful number, since it uses less digits than its factorization.

50136789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16712266.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 50136789 is about 7080.7336484294. The cubic root of 50136789 is about 368.7388006174.

The spelling of 50136789 in words is "fifty million, one hundred thirty-six thousand, seven hundred eighty-nine".