2564253 has 6 divisors (see below), whose sum is σ = 3703934. Its totient is φ = 1709496.

The previous prime is 2564251. The next prime is 2564279. The reversal of 2564253 is 3524652.

It can be written as a sum of positive squares in only one way, i.e., 2152089 + 412164 = 1467^2 + 642^2 .

It is not a de Polignac number, because 2564253 - 2¹ = 2564251 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 5⁷ + 6³ + 4³ + 2¹⁹ + 5⁹ + 3⁵ .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142450 + ... + 142467.

2^2564253 is an apocalyptic number.

It is an amenable number.

2564253 is a deficient number, since it is larger than the sum of its proper divisors (1139681).

2564253 is a wasteful number, since it uses less digits than its factorization.

2564253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284923 (or 284920 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 2564253 is about 1601.3285109558. The cubic root of 2564253 is about 136.8737893181.

The spelling of 2564253 in words is "two million, five hundred sixty-four thousand, two hundred fifty-three".