2563523 has 2 divisors, whose sum is σ = 2563524. Its totient is φ = 2563522.

The previous prime is 2563507. The next prime is 2563543. The reversal of 2563523 is 3253652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2563523 - 2⁴ = 2563507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2563492 and 2563501.

It is not a weakly prime, because it can be changed into another prime (2563543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281761 + 1281762.

It is an arithmetic number, because the mean of its divisors is an integer number (1281762).

2^2563523 is an apocalyptic number.

2563523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563523 is an equidigital number, since it uses as much as digits as its factorization.

2563523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 26.

The square root of 2563523 is about 1601.1005589906. The cubic root of 2563523 is about 136.8607995248.

The spelling of 2563523 in words is "two million, five hundred sixty-three thousand, five hundred twenty-three".