53115453 has 8 divisors (see below), whose sum is σ = 78689600. Its totient is φ = 35410284.

The previous prime is 53115451. The next prime is 53115473. The reversal of 53115453 is 35451135.

It is not a de Polignac number, because 53115453 - 2¹ = 53115451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1967239 = 53115453 / (5 + 3 + 1 + 1 + 5 + 4 + 5 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53115451) 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, 983593 + ... + 983646.

It is an arithmetic number, because the mean of its divisors is an integer number (9836200).

Almost surely, 2^53115453 is an apocalyptic number.

It is an amenable number.

53115453 is a deficient number, since it is larger than the sum of its proper divisors (25574147).

53115453 is a wasteful number, since it uses less digits than its factorization.

53115453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967248 (or 1967242 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 53115453 is about 7288.0349203335. The cubic root of 53115453 is about 375.9011288436.

Adding to 53115453 its reverse (35451135), we get a palindrome (88566588).

The spelling of 53115453 in words is "fifty-three million, one hundred fifteen thousand, four hundred fifty-three".