50138537 has 4 divisors (see below), whose sum is σ = 50238720. Its totient is φ = 50038356.

The previous prime is 50138533. The next prime is 50138603. The reversal of 50138537 is 73583105.

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 a cyclic number.

It is not a de Polignac number, because 50138537 - 2² = 50138533 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50138533) 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, 49337 + ... + 50342.

It is an arithmetic number, because the mean of its divisors is an integer number (12559680).

Almost surely, 2^50138537 is an apocalyptic number.

It is an amenable number.

50138537 is a deficient number, since it is larger than the sum of its proper divisors (100183).

50138537 is an equidigital number, since it uses as much as digits as its factorization.

50138537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100182.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 50138537 is about 7080.8570808907. The cubic root of 50138537 is about 368.7430858801.

The spelling of 50138537 in words is "fifty million, one hundred thirty-eight thousand, five hundred thirty-seven".