1255436225 has 24 divisors (see below), whose sum is σ = 1578615480. Its totient is φ = 990302720.

The previous prime is 1255436219. The next prime is 1255436227. The reversal of 1255436225 is 5226345521.

It can be written as a sum of positive squares in 12 ways, for example, as 1174021696 + 81414529 = 34264^2 + 9023^2 .

It is not a de Polignac number, because 1255436225 - 2¹⁶ = 1255370689 is a prime.

It is a super-2 number, since 2×1255436225² = 3152240230084501250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1255436227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1238819 + ... + 1239831.

It is an arithmetic number, because the mean of its divisors is an integer number (65775645).

Almost surely, 2^1255436225 is an apocalyptic number.

It is an amenable number.

1255436225 is a deficient number, since it is larger than the sum of its proper divisors (323179255).

1255436225 is a wasteful number, since it uses less digits than its factorization.

1255436225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669 (or 1664 counting only the distinct ones).

The product of its digits is 72000, while the sum is 35.

The square root of 1255436225 is about 35432.1354846134. The cubic root of 1255436225 is about 1078.7766855786.

The spelling of 1255436225 in words is "one billion, two hundred fifty-five million, four hundred thirty-six thousand, two hundred twenty-five".