1263025055 has 8 divisors (see below), whose sum is σ = 1516488000. Its totient is φ = 1009848096.

The previous prime is 1263025051. The next prime is 1263025063. The reversal of 1263025055 is 5505203621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1263025055 - 2² = 1263025051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263025051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61655 + ... + 79544.

It is an arithmetic number, because the mean of its divisors is an integer number (189561000).

Almost surely, 2^1263025055 is an apocalyptic number.

1263025055 is a deficient number, since it is larger than the sum of its proper divisors (253462945).

1263025055 is a wasteful number, since it uses less digits than its factorization.

1263025055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142993.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1263025055 is about 35539.0637890195. The cubic root of 1263025055 is about 1080.9459747315.

Adding to 1263025055 its reverse (5505203621), we get a palindrome (6768228676).

The spelling of 1263025055 in words is "one billion, two hundred sixty-three million, twenty-five thousand, fifty-five".