1265086055 has 24 divisors (see below), whose sum is σ = 1567510560. Its totient is φ = 980138880.

The previous prime is 1265086051. The next prime is 1265086057. The reversal of 1265086055 is 5506805621.

It is not a de Polignac number, because 1265086055 - 2² = 1265086051 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265086051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2881526 + ... + 2881964.

It is an arithmetic number, because the mean of its divisors is an integer number (65312940).

Almost surely, 2^1265086055 is an apocalyptic number.

1265086055 is a deficient number, since it is larger than the sum of its proper divisors (302424505).

1265086055 is an equidigital number, since it uses as much as digits as its factorization.

1265086055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 1265086055 is about 35568.0482315238. The cubic root of 1265086055 is about 1081.5336165349.

The spelling of 1265086055 in words is "one billion, two hundred sixty-five million, eighty-six thousand, fifty-five".