125553532543 has 8 divisors (see below), whose sum is σ = 135238588416. Its totient is φ = 116220660600.

The previous prime is 125553532541. The next prime is 125553532547. The reversal of 125553532543 is 345235355521.

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

It is not a de Polignac number, because 125553532543 - 2¹ = 125553532541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125553532543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125553532541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88045243 + ... + 88046668.

It is an arithmetic number, because the mean of its divisors is an integer number (16904823552).

Almost surely, 2^125553532543 is an apocalyptic number.

125553532543 is a deficient number, since it is larger than the sum of its proper divisors (9685055873).

125553532543 is a wasteful number, since it uses less digits than its factorization.

125553532543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176091965.

The product of its digits is 1350000, while the sum is 43.

The spelling of 125553532543 in words is "one hundred twenty-five billion, five hundred fifty-three million, five hundred thirty-two thousand, five hundred forty-three".