53332997 has 4 divisors (see below), whose sum is σ = 54063660. Its totient is φ = 52602336.

The previous prime is 53332987. The next prime is 53333003. The reversal of 53332997 is 79923335.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23804641 + 29528356 = 4879^2 + 5434^2 .

It is a cyclic number.

It is not a de Polignac number, because 53332997 - 2¹⁰ = 53331973 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 (53332907) 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, 365222 + ... + 365367.

It is an arithmetic number, because the mean of its divisors is an integer number (13515915).

Almost surely, 2^53332997 is an apocalyptic number.

It is an amenable number.

53332997 is a deficient number, since it is larger than the sum of its proper divisors (730663).

53332997 is an equidigital number, since it uses as much as digits as its factorization.

53332997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730662.

The product of its digits is 153090, while the sum is 41.

The square root of 53332997 is about 7302.9444061967. The cubic root of 53332997 is about 376.4136202963.

The spelling of 53332997 in words is "fifty-three million, three hundred thirty-two thousand, nine hundred ninety-seven".