1026511225 has 6 divisors (see below), whose sum is σ = 1272873950. Its totient is φ = 821208960.

The previous prime is 1026511207. The next prime is 1026511237. The reversal of 1026511225 is 5221156201.

It can be written as a sum of positive squares in 3 ways, for example, as 166203664 + 860307561 = 12892^2 + 29331^2 .

It is not a de Polignac number, because 1026511225 - 2¹³ = 1026503033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 41060449 = 1026511225 / (1 + 0 + 2 + 6 + 5 + 1 + 1 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1026511225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20530200 + ... + 20530249.

Almost surely, 2^1026511225 is an apocalyptic number.

It is an amenable number.

1026511225 is a deficient number, since it is larger than the sum of its proper divisors (246362725).

1026511225 is an equidigital number, since it uses as much as digits as its factorization.

1026511225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41060459 (or 41060454 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1026511225 is about 32039.2138636390. The cubic root of 1026511225 is about 1008.7601113665.

Adding to 1026511225 its reverse (5221156201), we get a palindrome (6247667426).

The spelling of 1026511225 in words is "one billion, twenty-six million, five hundred eleven thousand, two hundred twenty-five".