125505537 has 8 divisors (see below), whose sum is σ = 170498304. Its totient is φ = 82091568.

The previous prime is 125505521. The next prime is 125505547. The reversal of 125505537 is 735505521.

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

It is not a de Polignac number, because 125505537 - 2⁴ = 125505521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125505498 and 125505507.

It is not an unprimeable number, because it can be changed into a prime (125505547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394513 + ... + 394830.

It is an arithmetic number, because the mean of its divisors is an integer number (21312288).

Almost surely, 2^125505537 is an apocalyptic number.

It is an amenable number.

125505537 is a deficient number, since it is larger than the sum of its proper divisors (44992767).

125505537 is an equidigital number, since it uses as much as digits as its factorization.

125505537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789399.

The product of its (nonzero) digits is 26250, while the sum is 33.

The square root of 125505537 is about 11202.9253768826. The cubic root of 125505537 is about 500.6731426845.

The spelling of 125505537 in words is "one hundred twenty-five million, five hundred five thousand, five hundred thirty-seven".