2015625173 has 4 divisors (see below), whose sum is σ = 2015919360. Its totient is φ = 2015330988.

The previous prime is 2015625167. The next prime is 2015625259. The reversal of 2015625173 is 3715265102.

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 2015625173 - 2²⁴ = 1998847957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015625113) 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, 136565 + ... + 150602.

It is an arithmetic number, because the mean of its divisors is an integer number (503979840).

Almost surely, 2^2015625173 is an apocalyptic number.

It is an amenable number.

2015625173 is a deficient number, since it is larger than the sum of its proper divisors (294187).

2015625173 is an equidigital number, since it uses as much as digits as its factorization.

2015625173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294186.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 2015625173 is about 44895.7144168572. The cubic root of 2015625173 is about 1263.1936229419.

The spelling of 2015625173 in words is "two billion, fifteen million, six hundred twenty-five thousand, one hundred seventy-three".