1255042225 has 12 divisors (see below), whose sum is σ = 1568136240. Its totient is φ = 996366800.

The previous prime is 1255042199. The next prime is 1255042231. The reversal of 1255042225 is 5222405521.

It is not a de Polignac number, because 1255042225 - 2⁷ = 1255042097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255042193 and 1255042202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188335 + ... + 194884.

It is an arithmetic number, because the mean of its divisors is an integer number (130678020).

Almost surely, 2^1255042225 is an apocalyptic number.

It is an amenable number.

1255042225 is a deficient number, since it is larger than the sum of its proper divisors (313094015).

1255042225 is a wasteful number, since it uses less digits than its factorization.

1255042225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383360 (or 383355 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 1255042225 is about 35426.5751237683. The cubic root of 1255042225 is about 1078.6638210944.

Adding to 1255042225 its reverse (5222405521), we get a palindrome (6477447746).

The spelling of 1255042225 in words is "one billion, two hundred fifty-five million, forty-two thousand, two hundred twenty-five".