2173524005 has 4 divisors (see below), whose sum is σ = 2608228812. Its totient is φ = 1738819200.

The previous prime is 2173523971. The next prime is 2173524013. The reversal of 2173524005 is 5004253712.

It is a happy number.

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 246050596 + 1927473409 = 15686^2 + 43903^2 .

It is not a de Polignac number, because 2173524005 - 2⁸ = 2173523749 is a prime.

It is a super-2 number, since 2×2173524005² = 9448413200622480050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217352396 + ... + 217352405.

It is an arithmetic number, because the mean of its divisors is an integer number (652057203).

Almost surely, 2^2173524005 is an apocalyptic number.

It is an amenable number.

2173524005 is a deficient number, since it is larger than the sum of its proper divisors (434704807).

2173524005 is an equidigital number, since it uses as much as digits as its factorization.

2173524005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434704806.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 2173524005 is about 46621.0682524543. The cubic root of 2173524005 is about 1295.3530350380.

Adding to 2173524005 its reverse (5004253712), we get a palindrome (7177777717).

The spelling of 2173524005 in words is "two billion, one hundred seventy-three million, five hundred twenty-four thousand, five".