5172507381 has 8 divisors (see below), whose sum is σ = 6900083680. Its totient is φ = 3446634672.

The previous prime is 5172507377. The next prime is 5172507391. The reversal of 5172507381 is 1837052715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5172507381 - 2² = 5172507377 is a prime.

It is a super-2 number, since 2×5172507381² = 53509665212998958322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172507341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418795 + ... + 430968.

It is an arithmetic number, because the mean of its divisors is an integer number (862510460).

Almost surely, 2^5172507381 is an apocalyptic number.

It is an amenable number.

5172507381 is a deficient number, since it is larger than the sum of its proper divisors (1727576299).

5172507381 is a wasteful number, since it uses less digits than its factorization.

5172507381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851795.

The product of its (nonzero) digits is 58800, while the sum is 39.

The square root of 5172507381 is about 71920.1458633115. The cubic root of 5172507381 is about 1729.4195855506.

The spelling of 5172507381 in words is "five billion, one hundred seventy-two million, five hundred seven thousand, three hundred eighty-one".