53551453 has 4 divisors (see below), whose sum is σ = 54857628. Its totient is φ = 52245280.

The previous prime is 53551447. The next prime is 53551489. The reversal of 53551453 is 35415535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35415535 = 5 ⋅7083107.

It can be written as a sum of positive squares in 2 ways, for example, as 5484964 + 48066489 = 2342^2 + 6933^2 .

It is a cyclic number.

It is not a de Polignac number, because 53551453 - 2⁹ = 53550941 is a prime.

It is a super-2 number, since 2×53551453² = 5735516236822418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53551403) 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, 653026 + ... + 653107.

It is an arithmetic number, because the mean of its divisors is an integer number (13714407).

Almost surely, 2^53551453 is an apocalyptic number.

It is an amenable number.

53551453 is a deficient number, since it is larger than the sum of its proper divisors (1306175).

53551453 is a wasteful number, since it uses less digits than its factorization.

53551453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306174.

The product of its digits is 22500, while the sum is 31.

The square root of 53551453 is about 7317.8858285710. The cubic root of 53551453 is about 376.9268597544.

Adding to 53551453 its reverse (35415535), we get a palindrome (88966988).

The spelling of 53551453 in words is "fifty-three million, five hundred fifty-one thousand, four hundred fifty-three".