125533443 has 12 divisors (see below), whose sum is σ = 194705160. Its totient is φ = 71733312.

The previous prime is 125533427. The next prime is 125533453. The reversal of 125533443 is 344335521.

It is not a de Polignac number, because 125533443 - 2⁴ = 125533427 is a prime.

It is a super-2 number, since 2×125533443² = 31517290622868498, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125533443.

It is not an unprimeable number, because it can be changed into a prime (125533453) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 426838 + ... + 427131.

It is an arithmetic number, because the mean of its divisors is an integer number (16225430).

Almost surely, 2^125533443 is an apocalyptic number.

125533443 is a deficient number, since it is larger than the sum of its proper divisors (69171717).

125533443 is an equidigital number, since it uses as much as digits as its factorization.

125533443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853986 (or 853979 counting only the distinct ones).

The product of its digits is 21600, while the sum is 30.

The square root of 125533443 is about 11204.1707859172. The cubic root of 125533443 is about 500.7102479513.

Adding to 125533443 its reverse (344335521), we get a palindrome (469868964).

The spelling of 125533443 in words is "one hundred twenty-five million, five hundred thirty-three thousand, four hundred forty-three".