53542231 has 4 divisors (see below), whose sum is σ = 56691792. Its totient is φ = 50392672.

The previous prime is 53542213. The next prime is 53542249. The reversal of 53542231 is 13224535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13224535 = 5 ⋅2644907.

It is an interprime number because it is at equal distance from previous prime (53542213) and next prime (53542249).

It is a cyclic number.

It is not a de Polignac number, because 53542231 - 2⁷ = 53542103 is a prime.

It is a super-2 number, since 2×53542231² = 5733541000914722, 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 = 53542196 and 53542205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53542211) 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, 1574755 + ... + 1574788.

It is an arithmetic number, because the mean of its divisors is an integer number (14172948).

Almost surely, 2^53542231 is an apocalyptic number.

53542231 is a deficient number, since it is larger than the sum of its proper divisors (3149561).

53542231 is a wasteful number, since it uses less digits than its factorization.

53542231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149560.

The product of its digits is 3600, while the sum is 25.

The square root of 53542231 is about 7317.2557014225. The cubic root of 53542231 is about 376.9052218787.

Adding to 53542231 its reverse (13224535), we get a palindrome (66766766).

The spelling of 53542231 in words is "fifty-three million, five hundred forty-two thousand, two hundred thirty-one".