2555431 has 4 divisors (see below), whose sum is σ = 2565864. Its totient is φ = 2545000.

The previous prime is 2555429. The next prime is 2555453. The reversal of 2555431 is 1345552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2555431 - 2¹ = 2555429 is a prime.

It is a super-2 number, since 2×2555431² = 13060455191522, 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 = 2555396 and 2555405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4840 + ... + 5341.

It is an arithmetic number, because the mean of its divisors is an integer number (641466).

2^2555431 is an apocalyptic number.

2555431 is a deficient number, since it is larger than the sum of its proper divisors (10433).

2555431 is a wasteful number, since it uses less digits than its factorization.

2555431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10432.

The product of its digits is 3000, while the sum is 25.

The square root of 2555431 is about 1598.5715498532. The cubic root of 2555431 is about 136.7166431011.

The spelling of 2555431 in words is "two million, five hundred fifty-five thousand, four hundred thirty-one".