2663501 has 2 divisors, whose sum is σ = 2663502. Its totient is φ = 2663500.

The previous prime is 2663497. The next prime is 2663513. The reversal of 2663501 is 1053662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2102500 + 561001 = 1450^2 + 749^2 .

It is a cyclic number.

It is not a de Polignac number, because 2663501 - 2² = 2663497 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2663581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331750 + 1331751.

It is an arithmetic number, because the mean of its divisors is an integer number (1331751).

2^2663501 is an apocalyptic number.

It is an amenable number.

2663501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2663501 is an equidigital number, since it uses as much as digits as its factorization.

2663501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2663501 is about 1632.0235905158. The cubic root of 2663501 is about 138.6173593749.

The spelling of 2663501 in words is "two million, six hundred sixty-three thousand, five hundred one".