125554253533 has 4 divisors (see below), whose sum is σ = 132162372160. Its totient is φ = 118946134908.

The previous prime is 125554253527. The next prime is 125554253641. The reversal of 125554253533 is 335352455521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125554253533 - 2¹⁷ = 125554122461 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 125554253533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125554253333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3304059285 + ... + 3304059322.

It is an arithmetic number, because the mean of its divisors is an integer number (33040593040).

Almost surely, 2^125554253533 is an apocalyptic number.

It is an amenable number.

125554253533 is a deficient number, since it is larger than the sum of its proper divisors (6608118627).

125554253533 is an equidigital number, since it uses as much as digits as its factorization.

125554253533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6608118626.

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

The spelling of 125554253533 in words is "one hundred twenty-five billion, five hundred fifty-four million, two hundred fifty-three thousand, five hundred thirty-three".