2445021253 has 2 divisors, whose sum is σ = 2445021254. Its totient is φ = 2445021252.

The previous prime is 2445021247. The next prime is 2445021269. The reversal of 2445021253 is 3521205442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1972958724 + 472062529 = 44418^2 + 21727^2 .

It is a cyclic number.

It is not a de Polignac number, because 2445021253 - 2¹³ = 2445013061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2445021853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222510626 + 1222510627.

It is an arithmetic number, because the mean of its divisors is an integer number (1222510627).

Almost surely, 2^2445021253 is an apocalyptic number.

It is an amenable number.

2445021253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2445021253 is an equidigital number, since it uses as much as digits as its factorization.

2445021253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2445021253 is about 49447.1561669627. The cubic root of 2445021253 is about 1347.1859540784.

Adding to 2445021253 its reverse (3521205442), we get a palindrome (5966226695).

The spelling of 2445021253 in words is "two billion, four hundred forty-five million, twenty-one thousand, two hundred fifty-three".