125554533 has 16 divisors (see below), whose sum is σ = 180504576. Its totient is φ = 77169600.

The previous prime is 125554529. The next prime is 125554547. The reversal of 125554533 is 335455521.

It is a happy number.

It is not a de Polignac number, because 125554533 - 2² = 125554529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125554494 and 125554503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125554553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43491 + ... + 46287.

It is an arithmetic number, because the mean of its divisors is an integer number (11281536).

Almost surely, 2^125554533 is an apocalyptic number.

125554533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

125554533 is a deficient number, since it is larger than the sum of its proper divisors (54950043).

125554533 is a wasteful number, since it uses less digits than its factorization.

125554533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964.

The product of its digits is 45000, while the sum is 33.

The square root of 125554533 is about 11205.1119137651. Note that the first 3 decimals coincide. The cubic root of 125554533 is about 500.7382866624.

The spelling of 125554533 in words is "one hundred twenty-five million, five hundred fifty-four thousand, five hundred thirty-three".