1253125556526 has 16 divisors (see below), whose sum is σ = 2506282550784. Its totient is φ = 417703279224.

The previous prime is 1253125556509. The next prime is 1253125556531. The reversal of 1253125556526 is 6256555213521.

It is a congruent number.

It is an unprimeable number.

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, 774910 + ... + 1762593.

It is an arithmetic number, because the mean of its divisors is an integer number (156642659424).

Almost surely, 2^{1253125556526} is an apocalyptic number.

1253125556526 is an abundant number, since it is smaller than the sum of its proper divisors (1253156994258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253125556526 is a wasteful number, since it uses less digits than its factorization.

1253125556526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619815.

The product of its digits is 2700000, while the sum is 48.

The spelling of 1253125556526 in words is "one trillion, two hundred fifty-three billion, one hundred twenty-five million, five hundred fifty-six thousand, five hundred twenty-six".