625342231 has 8 divisors (see below), whose sum is σ = 658627200. Its totient is φ = 592094520.

The previous prime is 625342187. The next prime is 625342241. The reversal of 625342231 is 132243526.

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 625342231 - 2²⁷ = 491124503 is a prime.

It is a super-2 number, since 2×625342231² = 782105811744114722, 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 625342231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625342241) 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, 29286 + ... + 45916.

It is an arithmetic number, because the mean of its divisors is an integer number (82328400).

Almost surely, 2^625342231 is an apocalyptic number.

625342231 is a deficient number, since it is larger than the sum of its proper divisors (33284969).

625342231 is a wasteful number, since it uses less digits than its factorization.

625342231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18629.

The product of its digits is 8640, while the sum is 28.

The square root of 625342231 is about 25006.8436832800. The cubic root of 625342231 is about 855.1440000042.

Adding to 625342231 its reverse (132243526), we get a palindrome (757585757).

It can be divided in two parts, 6253 and 42231, that added together give a palindrome (48484).

The spelling of 625342231 in words is "six hundred twenty-five million, three hundred forty-two thousand, two hundred thirty-one".