1275580025 has 6 divisors (see below), whose sum is σ = 1581719262. Its totient is φ = 1020464000.

The previous prime is 1275580013. The next prime is 1275580037. The reversal of 1275580025 is 5200855721.

It is an interprime number because it is at equal distance from previous prime (1275580013) and next prime (1275580037).

It can be written as a sum of positive squares in 3 ways, for example, as 21641104 + 1253938921 = 4652^2 + 35411^2 .

It is not a de Polignac number, because 1275580025 - 2⁶ = 1275579961 is a prime.

It is a Duffinian number.

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, 25511576 + ... + 25511625.

It is an arithmetic number, because the mean of its divisors is an integer number (263619877).

Almost surely, 2^1275580025 is an apocalyptic number.

It is an amenable number.

1275580025 is a deficient number, since it is larger than the sum of its proper divisors (306139237).

1275580025 is an equidigital number, since it uses as much as digits as its factorization.

1275580025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51023211 (or 51023206 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 1275580025 is about 35715.2631937663. The cubic root of 1275580025 is about 1084.5158493166.

The spelling of 1275580025 in words is "one billion, two hundred seventy-five million, five hundred eighty thousand, twenty-five".