50553231 has 4 divisors (see below), whose sum is σ = 67404312. Its totient is φ = 33702152.

The previous prime is 50553229. The next prime is 50553253. The reversal of 50553231 is 13235505.

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 50553231 - 2¹ = 50553229 is a prime.

It is a super-2 number, since 2×50553231² = 5111258329078722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50553221) 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, 8425536 + ... + 8425541.

It is an arithmetic number, because the mean of its divisors is an integer number (16851078).

Almost surely, 2^50553231 is an apocalyptic number.

50553231 is a deficient number, since it is larger than the sum of its proper divisors (16851081).

50553231 is a wasteful number, since it uses less digits than its factorization.

50553231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16851080.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 50553231 is about 7110.0795354201. The cubic root of 50553231 is about 369.7569160572.

Adding to 50553231 its reverse (13235505), we get a palindrome (63788736).

The spelling of 50553231 in words is "fifty million, five hundred fifty-three thousand, two hundred thirty-one".