50145231 has 4 divisors (see below), whose sum is σ = 66860312. Its totient is φ = 33430152.

The previous prime is 50145209. The next prime is 50145253. The reversal of 50145231 is 13254105.

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

It is an interprime number because it is at equal distance from previous prime (50145209) and next prime (50145253).

It is not a de Polignac number, because 50145231 - 2⁶ = 50145167 is a prime.

It is a super-2 number, since 2×50145231² = 5029088384086722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50145198 and 50145207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50145281) 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, 8357536 + ... + 8357541.

It is an arithmetic number, because the mean of its divisors is an integer number (16715078).

Almost surely, 2^50145231 is an apocalyptic number.

50145231 is a deficient number, since it is larger than the sum of its proper divisors (16715081).

50145231 is a wasteful number, since it uses less digits than its factorization.

50145231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16715080.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 50145231 is about 7081.3297480064. The cubic root of 50145231 is about 368.7594954560.

Adding to 50145231 its reverse (13254105), we get a palindrome (63399336).

The spelling of 50145231 in words is "fifty million, one hundred forty-five thousand, two hundred thirty-one".