52172031 has 8 divisors (see below), whose sum is σ = 73654704. Its totient is φ = 32735360.

The previous prime is 52172017. The next prime is 52172033. The reversal of 52172031 is 13027125.

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

It is a cyclic number.

It is not a de Polignac number, because 52172031 - 2¹⁴ = 52155647 is a prime.

It is a super-2 number, since 2×52172031² = 5443841637329922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52171989 and 52172007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52172033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511440 + ... + 511541.

It is an arithmetic number, because the mean of its divisors is an integer number (9206838).

Almost surely, 2^52172031 is an apocalyptic number.

52172031 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

52172031 is a deficient number, since it is larger than the sum of its proper divisors (21482673).

52172031 is a wasteful number, since it uses less digits than its factorization.

52172031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023001.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 52172031 is about 7223.0209054107. The cubic root of 52172031 is about 373.6622700618.

Adding to 52172031 its reverse (13027125), we get a palindrome (65199156).

The spelling of 52172031 in words is "fifty-two million, one hundred seventy-two thousand, thirty-one".