53173573 has 4 divisors (see below), whose sum is σ = 54074880. Its totient is φ = 52272268.

The previous prime is 53173567. The next prime is 53173583. The reversal of 53173573 is 37537135.

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.

It is a cyclic number.

It is not a de Polignac number, because 53173573 - 2⁵ = 53173541 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 (53173513) 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, 450565 + ... + 450682.

It is an arithmetic number, because the mean of its divisors is an integer number (13518720).

Almost surely, 2^53173573 is an apocalyptic number.

It is an amenable number.

53173573 is a deficient number, since it is larger than the sum of its proper divisors (901307).

53173573 is an equidigital number, since it uses as much as digits as its factorization.

53173573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901306.

The product of its digits is 33075, while the sum is 34.

The square root of 53173573 is about 7292.0211875721. The cubic root of 53173573 is about 376.0381850649.

The spelling of 53173573 in words is "fifty-three million, one hundred seventy-three thousand, five hundred seventy-three".