50051231 has 4 divisors (see below), whose sum is σ = 50160264. Its totient is φ = 49942200.

The previous prime is 50051227. The next prime is 50051233. The reversal of 50051231 is 13215005.

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 50051231 - 2² = 50051227 is a prime.

It is a super-2 number, since 2×50051231² = 5010251449230722, 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 (50051233) 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, 53825 + ... + 54746.

It is an arithmetic number, because the mean of its divisors is an integer number (12540066).

Almost surely, 2^50051231 is an apocalyptic number.

50051231 is a deficient number, since it is larger than the sum of its proper divisors (109033).

50051231 is a wasteful number, since it uses less digits than its factorization.

50051231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109032.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 50051231 is about 7074.6894631496. The cubic root of 50051231 is about 368.5289313262.

Adding to 50051231 its reverse (13215005), we get a palindrome (63266236).

The spelling of 50051231 in words is "fifty million, fifty-one thousand, two hundred thirty-one".