2255621431 has 8 divisors (see below), whose sum is σ = 2689933824. Its totient is φ = 1849329240.

The previous prime is 2255621399. The next prime is 2255621441. The reversal of 2255621431 is 1341265522.

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 2255621431 - 2⁵ = 2255621399 is a prime.

It is a super-2 number, since 2×2255621431² = 10175656079972975522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2255621393 and 2255621402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255621441) 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, 7004875 + ... + 7005196.

It is an arithmetic number, because the mean of its divisors is an integer number (336241728).

Almost surely, 2^2255621431 is an apocalyptic number.

2255621431 is a deficient number, since it is larger than the sum of its proper divisors (434312393).

2255621431 is a wasteful number, since it uses less digits than its factorization.

2255621431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14010101.

The product of its digits is 14400, while the sum is 31.

The square root of 2255621431 is about 47493.3830233223. The cubic root of 2255621431 is about 1311.4610722731.

Adding to 2255621431 its reverse (1341265522), we get a palindrome (3596886953).

The spelling of 2255621431 in words is "two billion, two hundred fifty-five million, six hundred twenty-one thousand, four hundred thirty-one".