125558437 has 4 divisors (see below), whose sum is σ = 125617536. Its totient is φ = 125499340.

The previous prime is 125558417. The next prime is 125558473. The reversal of 125558437 is 734855521.

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 125558437 - 2¹⁵ = 125525669 is a prime.

It is a super-2 number, since 2×125558437² = 31529842203765938, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 125558437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125558417) 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 3 ways as a sum of consecutive naturals, for example, 26239 + ... + 30652.

It is an arithmetic number, because the mean of its divisors is an integer number (31404384).

Almost surely, 2^125558437 is an apocalyptic number.

It is an amenable number.

125558437 is a deficient number, since it is larger than the sum of its proper divisors (59099).

125558437 is an equidigital number, since it uses as much as digits as its factorization.

125558437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59098.

The product of its digits is 168000, while the sum is 40.

The square root of 125558437 is about 11205.2861186138. The cubic root of 125558437 is about 500.7434766038.

The spelling of 125558437 in words is "one hundred twenty-five million, five hundred fifty-eight thousand, four hundred thirty-seven".