53331453 has 42 divisors (see below), whose sum is σ = 93077694. Its totient is φ = 30454704.

The previous prime is 53331451. The next prime is 53331517. The reversal of 53331453 is 35413335.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 51581124 + 1750329 = 7182^2 + 1323^2 .

It is not a de Polignac number, because 53331453 - 2¹ = 53331451 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53331451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 34975 + ... + 36467.

Almost surely, 2^53331453 is an apocalyptic number.

It is an amenable number.

53331453 is a deficient number, since it is larger than the sum of its proper divisors (39746241).

53331453 is an equidigital number, since it uses as much as digits as its factorization.

53331453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525 (or 1503 counting only the distinct ones).

The product of its digits is 8100, while the sum is 27.

The square root of 53331453 is about 7302.8386946447. The cubic root of 53331453 is about 376.4099878469.

Adding to 53331453 its reverse (35413335), we get a palindrome (88744788).

It can be divided in two parts, 5333 and 1453, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 53331453 in words is "fifty-three million, three hundred thirty-one thousand, four hundred fifty-three".