53140231 has 8 divisors (see below), whose sum is σ = 55107584. Its totient is φ = 51188760.

The previous prime is 53140193. The next prime is 53140253. The reversal of 53140231 is 13204135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53140231 - 2¹³ = 53132039 is a prime.

It is a super-2 number, since 2×53140231² = 5647768301466722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53140199 and 53140208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53140271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3070 + ... + 10756.

It is an arithmetic number, because the mean of its divisors is an integer number (6888448).

Almost surely, 2^53140231 is an apocalyptic number.

53140231 is a deficient number, since it is larger than the sum of its proper divisors (1967353).

53140231 is a wasteful number, since it uses less digits than its factorization.

53140231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7941.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 53140231 is about 7289.7346316584. The cubic root of 53140231 is about 375.9595715359.

Adding to 53140231 its reverse (13204135), we get a palindrome (66344366).

The spelling of 53140231 in words is "fifty-three million, one hundred forty thousand, two hundred thirty-one".