53355617 has 4 divisors (see below), whose sum is σ = 60977856. Its totient is φ = 45733380.

The previous prime is 53355583. The next prime is 53355623. The reversal of 53355617 is 71655335.

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 not a de Polignac number, because 53355617 - 2¹⁸ = 53093473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53355017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3811109 + ... + 3811122.

It is an arithmetic number, because the mean of its divisors is an integer number (15244464).

Almost surely, 2^53355617 is an apocalyptic number.

It is an amenable number.

53355617 is a deficient number, since it is larger than the sum of its proper divisors (7622239).

53355617 is an equidigital number, since it uses as much as digits as its factorization.

53355617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7622238.

The product of its digits is 47250, while the sum is 35.

The square root of 53355617 is about 7304.4929324355. The cubic root of 53355617 is about 376.4668285858.

The spelling of 53355617 in words is "fifty-three million, three hundred fifty-five thousand, six hundred seventeen".