1025502253 has 2 divisors, whose sum is σ = 1025502254. Its totient is φ = 1025502252.

The previous prime is 1025502251. The next prime is 1025502287. The reversal of 1025502253 is 3522055201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 689220009 + 336282244 = 26253^2 + 18338^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025502253 - 2¹ = 1025502251 is a prime.

Together with 1025502251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025502251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512751126 + 512751127.

It is an arithmetic number, because the mean of its divisors is an integer number (512751127).

Almost surely, 2^1025502253 is an apocalyptic number.

It is an amenable number.

1025502253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025502253 is an equidigital number, since it uses as much as digits as its factorization.

1025502253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 1025502253 is about 32023.4641005623. The cubic root of 1025502253 is about 1008.4294949583.

Adding to 1025502253 its reverse (3522055201), we get a palindrome (4547557454).

The spelling of 1025502253 in words is "one billion, twenty-five million, five hundred two thousand, two hundred fifty-three".