53303653 has 16 divisors (see below), whose sum is σ = 62884080. Its totient is φ = 44706816.

The previous prime is 53303641. The next prime is 53303681. The reversal of 53303653 is 35630335.

It can be written as a sum of positive squares in 8 ways, for example, as 4401604 + 48902049 = 2098^2 + 6993^2 .

It is a cyclic number.

It is not a de Polignac number, because 53303653 - 2⁹ = 53303141 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 (53303603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2251 + ... + 10567.

It is an arithmetic number, because the mean of its divisors is an integer number (3930255).

Almost surely, 2^53303653 is an apocalyptic number.

It is an amenable number.

53303653 is a deficient number, since it is larger than the sum of its proper divisors (9580427).

53303653 is a wasteful number, since it uses less digits than its factorization.

53303653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8376.

The product of its (nonzero) digits is 12150, while the sum is 28.

The square root of 53303653 is about 7300.9350770980. The cubic root of 53303653 is about 376.3445729381.

Adding to 53303653 its reverse (35630335), we get a palindrome (88933988).

It can be divided in two parts, 53303 and 653, that added together give a triangular number (53956 = T₃₂₈).

The spelling of 53303653 in words is "fifty-three million, three hundred three thousand, six hundred fifty-three".