125556052533 has 64 divisors (see below), whose sum is σ = 187931197440. Its totient is φ = 74199168000.

The previous prime is 125556052513. The next prime is 125556052541. The reversal of 125556052533 is 335250655521.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-125556052533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125556052513) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9414516 + ... + 9427842.

It is an arithmetic number, because the mean of its divisors is an integer number (2936424960).

Almost surely, 2^125556052533 is an apocalyptic number.

It is an amenable number.

125556052533 is a deficient number, since it is larger than the sum of its proper divisors (62375144907).

125556052533 is a wasteful number, since it uses less digits than its factorization.

125556052533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13538.

The product of its (nonzero) digits is 675000, while the sum is 42.

The spelling of 125556052533 in words is "one hundred twenty-five billion, five hundred fifty-six million, fifty-two thousand, five hundred thirty-three".