2565426 has 16 divisors (see below), whose sum is σ = 5155200. Its totient is φ = 851088.

The previous prime is 2565403. The next prime is 2565449. The reversal of 2565426 is 6245652.

It is an interprime number because it is at equal distance from previous prime (2565403) and next prime (2565449).

It is a super-2 number, since 2×2565426² = 13162821122952, which contains 22 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁶ + 5² + 6³ + 5⁸ + 4⁶ + 2²¹ + 6⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 2565393 and 2565402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540 + ... + 2328.

It is an arithmetic number, because the mean of its divisors is an integer number (322200).

2^2565426 is an apocalyptic number.

2565426 is an abundant number, since it is smaller than the sum of its proper divisors (2589774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2565426 is a wasteful number, since it uses less digits than its factorization.

2565426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033.

The product of its digits is 14400, while the sum is 30.

The square root of 2565426 is about 1601.6947274684. The cubic root of 2565426 is about 136.8946567962.

The spelling of 2565426 in words is "two million, five hundred sixty-five thousand, four hundred twenty-six".