50231491 has 4 divisors (see below), whose sum is σ = 50261992. Its totient is φ = 50200992.

The previous prime is 50231453. The next prime is 50231507. The reversal of 50231491 is 19413205.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50231491 - 2¹⁵ = 50198723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50231411) 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, 12630 + ... + 16123.

It is an arithmetic number, because the mean of its divisors is an integer number (12565498).

Almost surely, 2^50231491 is an apocalyptic number.

50231491 is a deficient number, since it is larger than the sum of its proper divisors (30501).

50231491 is a wasteful number, since it uses less digits than its factorization.

50231491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30500.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 50231491 is about 7087.4177949377. The cubic root of 50231491 is about 368.9708214480.

Adding to 50231491 its reverse (19413205), we get a palindrome (69644696).

The spelling of 50231491 in words is "fifty million, two hundred thirty-one thousand, four hundred ninety-one".