1275125262525 has 24 divisors (see below), whose sum is σ = 2342452335360. Its totient is φ = 680066806320.

The previous prime is 1275125262517. The next prime is 1275125262559. The reversal of 1275125262525 is 5252625215721.

1275125262525 is a `hidden beast` number, since 1 + 2 + 7 + 5 + 12 + 5 + 2 + 625 + 2 + 5 = 666.

It is not a de Polignac number, because 1275125262525 - 2³ = 1275125262517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 944536557 + ... + 944537906.

It is an arithmetic number, because the mean of its divisors is an integer number (97602180640).

Almost surely, 2^{1275125262525} is an apocalyptic number.

1275125262525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1275125262525 is a deficient number, since it is larger than the sum of its proper divisors (1067327072835).

1275125262525 is a wasteful number, since it uses less digits than its factorization.

1275125262525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889074482 (or 1889074471 counting only the distinct ones).

The product of its digits is 840000, while the sum is 45.

The spelling of 1275125262525 in words is "one trillion, two hundred seventy-five billion, one hundred twenty-five million, two hundred sixty-two thousand, five hundred twenty-five".