2638501 has 2 divisors, whose sum is σ = 2638502. Its totient is φ = 2638500.

The previous prime is 2638477. The next prime is 2638529. The reversal of 2638501 is 1058362.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 30276 = 1615^2 + 174^2 .

It is a cyclic number.

It is not a de Polignac number, because 2638501 - 2⁵ = 2638469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2638561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319250 + 1319251.

It is an arithmetic number, because the mean of its divisors is an integer number (1319251).

2^2638501 is an apocalyptic number.

It is an amenable number.

2638501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2638501 is an equidigital number, since it uses as much as digits as its factorization.

2638501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2638501 is about 1624.3463300663. The cubic root of 2638501 is about 138.1823012527.

The spelling of 2638501 in words is "two million, six hundred thirty-eight thousand, five hundred one".