53556653 has 4 divisors (see below), whose sum is σ = 53810688. Its totient is φ = 53302620.

The previous prime is 53556631. The next prime is 53556721. The reversal of 53556653 is 35665535.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35665535 = 5 ⋅7133107.

It is a cyclic number.

It is not a de Polignac number, because 53556653 - 2¹⁴ = 53540269 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 (53556053) 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, 126701 + ... + 127122.

It is an arithmetic number, because the mean of its divisors is an integer number (13452672).

Almost surely, 2^53556653 is an apocalyptic number.

It is an amenable number.

53556653 is a deficient number, since it is larger than the sum of its proper divisors (254035).

53556653 is a wasteful number, since it uses less digits than its factorization.

53556653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254034.

The product of its digits is 202500, while the sum is 38.

The square root of 53556653 is about 7318.2411138196. The cubic root of 53556653 is about 376.9390595867.

The spelling of 53556653 in words is "fifty-three million, five hundred fifty-six thousand, six hundred fifty-three".