53453453 has 4 divisors (see below), whose sum is σ = 53497500. Its totient is φ = 53409408.

The previous prime is 53453443. The next prime is 53453459. The reversal of 53453453 is 35435435.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39778249 + 13675204 = 6307^2 + 3698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53453453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53453459) 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, 20150 + ... + 22647.

It is an arithmetic number, because the mean of its divisors is an integer number (13374375).

Almost surely, 2^53453453 is an apocalyptic number.

It is an amenable number.

53453453 is a deficient number, since it is larger than the sum of its proper divisors (44047).

53453453 is a wasteful number, since it uses less digits than its factorization.

53453453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44046.

The product of its digits is 54000, while the sum is 32.

The square root of 53453453 is about 7311.1868393579. The cubic root of 53453453 is about 376.6967919971.

Adding to 53453453 its reverse (35435435), we get a palindrome (88888888).

The spelling of 53453453 in words is "fifty-three million, four hundred fifty-three thousand, four hundred fifty-three".