1255365025 has 24 divisors (see below), whose sum is σ = 1588391640. Its totient is φ = 984023040.

The previous prime is 1255365011. The next prime is 1255365029. The reversal of 1255365025 is 5205635521.

It can be written as a sum of positive squares in 12 ways, for example, as 1001026321 + 254338704 = 31639^2 + 15948^2 .

It is not a de Polignac number, because 1255365025 - 2¹³ = 1255356833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255365029) 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, 248929 + ... + 253921.

It is an arithmetic number, because the mean of its divisors is an integer number (66182985).

Almost surely, 2^1255365025 is an apocalyptic number.

It is an amenable number.

1255365025 is a deficient number, since it is larger than the sum of its proper divisors (333026615).

1255365025 is a wasteful number, since it uses less digits than its factorization.

1255365025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5205 (or 5200 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 1255365025 is about 35431.1307327328. The cubic root of 1255365025 is about 1078.7562915114.

The spelling of 1255365025 in words is "one billion, two hundred fifty-five million, three hundred sixty-five thousand, twenty-five".