52173507 has 4 divisors (see below), whose sum is σ = 69564680. Its totient is φ = 34782336.

The previous prime is 52173481. The next prime is 52173509. The reversal of 52173507 is 70537125.

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

It is not a de Polignac number, because 52173507 - 2⁷ = 52173379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52173509) 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, 8695582 + ... + 8695587.

It is an arithmetic number, because the mean of its divisors is an integer number (17391170).

Almost surely, 2^52173507 is an apocalyptic number.

52173507 is a deficient number, since it is larger than the sum of its proper divisors (17391173).

52173507 is a wasteful number, since it uses less digits than its factorization.

52173507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17391172.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 52173507 is about 7223.1230780044. The cubic root of 52173507 is about 373.6657937909.

The spelling of 52173507 in words is "fifty-two million, one hundred seventy-three thousand, five hundred seven".