2445523 has 2 divisors, whose sum is σ = 2445524. Its totient is φ = 2445522.

The previous prime is 2445517. The next prime is 2445533. The reversal of 2445523 is 3255442.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2445523 - 2⁹ = 2445011 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 4⁵ + 4⁹ + 5 + 5⁷ + 2²¹ + 3⁸ .

2445523 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2445533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222761 + 1222762.

It is an arithmetic number, because the mean of its divisors is an integer number (1222762).

2^2445523 is an apocalyptic number.

2445523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2445523 is an equidigital number, since it uses as much as digits as its factorization.

2445523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 25.

The square root of 2445523 is about 1563.8168051278. The cubic root of 2445523 is about 134.7278100555.

The spelling of 2445523 in words is "two million, four hundred forty-five thousand, five hundred twenty-three".