2638253 has 2 divisors, whose sum is σ = 2638254. Its totient is φ = 2638252.

The previous prime is 2638243. The next prime is 2638267. The reversal of 2638253 is 3528362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2569609 + 68644 = 1603^2 + 262^2 .

It is a cyclic number.

It is not a de Polignac number, because 2638253 - 2⁸ = 2637997 is a prime.

It is a d-powerful number, because it can be written as 2¹⁸ + 6³ + 3⁵ + 8⁶ + 2²¹ + 5⁶ + 3⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2638243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319126 + 1319127.

It is an arithmetic number, because the mean of its divisors is an integer number (1319127).

2^2638253 is an apocalyptic number.

It is an amenable number.

2638253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2638253 is an equidigital number, since it uses as much as digits as its factorization.

2638253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 2638253 is about 1624.2699898724. The cubic root of 2638253 is about 138.1779717383.

The spelling of 2638253 in words is "two million, six hundred thirty-eight thousand, two hundred fifty-three".