52173431 has 8 divisors (see below), whose sum is σ = 53586624. Its totient is φ = 50772960.

The previous prime is 52173421. The next prime is 52173437. The reversal of 52173431 is 13437125.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52173431 is a prime.

It is a super-2 number, since 2×52173431² = 5444133804623522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52173431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52173437) 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, 5441 + ... + 11573.

It is an arithmetic number, because the mean of its divisors is an integer number (6698328).

Almost surely, 2^52173431 is an apocalyptic number.

52173431 is a deficient number, since it is larger than the sum of its proper divisors (1413193).

52173431 is a wasteful number, since it uses less digits than its factorization.

52173431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6361.

The product of its digits is 2520, while the sum is 26.

The square root of 52173431 is about 7223.1178171202. The cubic root of 52173431 is about 373.6656123539.

The spelling of 52173431 in words is "fifty-two million, one hundred seventy-three thousand, four hundred thirty-one".