53505653 has 4 divisors (see below), whose sum is σ = 56321760. Its totient is φ = 50689548.

The previous prime is 53505649. The next prime is 53505679. The reversal of 53505653 is 35650535.

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 53505653 - 2² = 53505649 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 (53505553) 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, 1408025 + ... + 1408062.

It is an arithmetic number, because the mean of its divisors is an integer number (14080440).

Almost surely, 2^53505653 is an apocalyptic number.

It is an amenable number.

53505653 is a deficient number, since it is larger than the sum of its proper divisors (2816107).

53505653 is a wasteful number, since it uses less digits than its factorization.

53505653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816106.

The product of its (nonzero) digits is 33750, while the sum is 32.

The square root of 53505653 is about 7314.7558400811. The cubic root of 53505653 is about 376.8193732592.

The spelling of 53505653 in words is "fifty-three million, five hundred five thousand, six hundred fifty-three".