2565031 has 4 divisors (see below), whose sum is σ = 2931472. Its totient is φ = 2198592.

The previous prime is 2565023. The next prime is 2565047. The reversal of 2565031 is 1305652.

It is a happy number.

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 2565031 - 2³ = 2565023 is a prime.

It is a super-2 number, since 2×2565031² = 13158768061922, 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 = 2564993 and 2565011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565061) 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, 183210 + ... + 183223.

It is an arithmetic number, because the mean of its divisors is an integer number (732868).

2^2565031 is an apocalyptic number.

2565031 is a deficient number, since it is larger than the sum of its proper divisors (366441).

2565031 is an equidigital number, since it uses as much as digits as its factorization.

2565031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366440.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2565031 is about 1601.5714158288. The cubic root of 2565031 is about 136.8876305213.

It can be divided in two parts, 25 and 65031, that added together give a palindrome (65056).

The spelling of 2565031 in words is "two million, five hundred sixty-five thousand, thirty-one".