53561353 has 4 divisors (see below), whose sum is σ = 53733888. Its totient is φ = 53388820.

The previous prime is 53561351. The next prime is 53561371. The reversal of 53561353 is 35316535.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53561353 - 2¹ = 53561351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53561351) 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, 85801 + ... + 86422.

It is an arithmetic number, because the mean of its divisors is an integer number (13433472).

Almost surely, 2^53561353 is an apocalyptic number.

It is an amenable number.

53561353 is a deficient number, since it is larger than the sum of its proper divisors (172535).

53561353 is a wasteful number, since it uses less digits than its factorization.

53561353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172534.

The product of its digits is 20250, while the sum is 31.

The square root of 53561353 is about 7318.5622221854. The cubic root of 53561353 is about 376.9500856788.

Adding to 53561353 its reverse (35316535), we get a palindrome (88877888).

The spelling of 53561353 in words is "fifty-three million, five hundred sixty-one thousand, three hundred fifty-three".