2641553 has 2 divisors, whose sum is σ = 2641554. Its totient is φ = 2641552.

The previous prime is 2641549. The next prime is 2641559. The reversal of 2641553 is 3551462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1763584 + 877969 = 1328^2 + 937^2 .

It is a cyclic number.

It is not a de Polignac number, because 2641553 - 2² = 2641549 is a prime.

It is not a weakly prime, because it can be changed into another prime (2641559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320776 + 1320777.

It is an arithmetic number, because the mean of its divisors is an integer number (1320777).

2^2641553 is an apocalyptic number.

It is an amenable number.

2641553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641553 is an equidigital number, since it uses as much as digits as its factorization.

2641553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 26.

The square root of 2641553 is about 1625.2855133791. The cubic root of 2641553 is about 138.2355600133.

Subtracting 2641553 from its reverse (3551462), we obtain a palindrome (909909).

The spelling of 2641553 in words is "two million, six hundred forty-one thousand, five hundred fifty-three".