1275773025 has 12 divisors (see below), whose sum is σ = 2109278192. Its totient is φ = 680412240.

The previous prime is 1275773021. The next prime is 1275773077. The reversal of 1275773025 is 5203775721.

It is not a de Polignac number, because 1275773025 - 2² = 1275773021 is a prime.

It is a super-2 number, since 2×1275773025² = 3255193622635301250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1275773021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8505079 + ... + 8505228.

Almost surely, 2^1275773025 is an apocalyptic number.

1275773025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1275773025 is a deficient number, since it is larger than the sum of its proper divisors (833505167).

1275773025 is a wasteful number, since it uses less digits than its factorization.

1275773025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17010320 (or 17010315 counting only the distinct ones).

The product of its (nonzero) digits is 102900, while the sum is 39.

The square root of 1275773025 is about 35717.9650176210. The cubic root of 1275773025 is about 1084.5705436515.

The spelling of 1275773025 in words is "one billion, two hundred seventy-five million, seven hundred seventy-three thousand, twenty-five".