53510231 has 4 divisors (see below), whose sum is σ = 54519912. Its totient is φ = 52500552.

The previous prime is 53510209. The next prime is 53510239. The reversal of 53510231 is 13201535.

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 53510231 - 2²² = 49315927 is a prime.

It is a super-2 number, since 2×53510231² = 5726689643346722, 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 (53510239) 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, 504761 + ... + 504866.

It is an arithmetic number, because the mean of its divisors is an integer number (13629978).

Almost surely, 2^53510231 is an apocalyptic number.

53510231 is a deficient number, since it is larger than the sum of its proper divisors (1009681).

53510231 is a wasteful number, since it uses less digits than its factorization.

53510231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009680.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 53510231 is about 7315.0687624929. The cubic root of 53510231 is about 376.8301199735.

Adding to 53510231 its reverse (13201535), we get a palindrome (66711766).

The spelling of 53510231 in words is "fifty-three million, five hundred ten thousand, two hundred thirty-one".