1263625031255 has 32 divisors (see below), whose sum is σ = 1563071843520. Its totient is φ = 980359511040.

The previous prime is 1263625031237. The next prime is 1263625031269. The reversal of 1263625031255 is 5521305263621.

It is not a de Polignac number, because 1263625031255 - 2¹⁴ = 1263625014871 is a prime.

It is a super-2 number, since 2×1263625031255² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5090609 + ... + 5333061.

It is an arithmetic number, because the mean of its divisors is an integer number (48845995110).

Almost surely, 2^{1263625031255} is an apocalyptic number.

1263625031255 is a deficient number, since it is larger than the sum of its proper divisors (299446812265).

1263625031255 is a wasteful number, since it uses less digits than its factorization.

1263625031255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242771.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 1263625031255 in words is "one trillion, two hundred sixty-three billion, six hundred twenty-five million, thirty-one thousand, two hundred fifty-five".