125545506 has 8 divisors (see below), whose sum is σ = 251091024. Its totient is φ = 41848500.

The previous prime is 125545439. The next prime is 125545529. The reversal of 125545506 is 605545521.

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

125545506 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10462120 + ... + 10462131.

It is an arithmetic number, because the mean of its divisors is an integer number (31386378).

Almost surely, 2^125545506 is an apocalyptic number.

125545506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125545506 is a wasteful number, since it uses less digits than its factorization.

125545506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20924256.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 125545506 is about 11204.7090993028. The cubic root of 125545506 is about 500.7262858403.

The spelling of 125545506 in words is "one hundred twenty-five million, five hundred forty-five thousand, five hundred six".