53043551 has 4 divisors (see below), whose sum is σ = 57865704. Its totient is φ = 48221400.

The previous prime is 53043509. The next prime is 53043559. The reversal of 53043551 is 15534035.

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

It is a cyclic number.

It is not a de Polignac number, because 53043551 - 2¹⁰ = 53042527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53043551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53043559) 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, 2411060 + ... + 2411081.

It is an arithmetic number, because the mean of its divisors is an integer number (14466426).

Almost surely, 2^53043551 is an apocalyptic number.

53043551 is a deficient number, since it is larger than the sum of its proper divisors (4822153).

53043551 is a wasteful number, since it uses less digits than its factorization.

53043551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4822152.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 53043551 is about 7283.1003700347. The cubic root of 53043551 is about 375.7314340467.

Adding to 53043551 its reverse (15534035), we get a palindrome (68577586).

The spelling of 53043551 in words is "fifty-three million, forty-three thousand, five hundred fifty-one".