52172707392 has 448 divisors, whose sum is σ = 174921062400. Its totient is φ = 15116544000.

The previous prime is 52172707357. The next prime is 52172707393. The reversal of 52172707392 is 29370727125.

It is a super-2 number, since 2×52172707392² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52172707393) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 107130573 + ... + 107131059.

It is an arithmetic number, because the mean of its divisors is an integer number (390448800).

Almost surely, 2^52172707392 is an apocalyptic number.

52172707392 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52172707392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87460531200).

52172707392 is an abundant number, since it is smaller than the sum of its proper divisors (122748355008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52172707392 is a wasteful number, since it uses less digits than its factorization.

52172707392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

It can be divided in two parts, 5217 and 2707392, that added together give a square (2712609 = 1647²).

The spelling of 52172707392 in words is "fifty-two billion, one hundred seventy-two million, seven hundred seven thousand, three hundred ninety-two".