125506206 has 64 divisors (see below), whose sum is σ = 337512960. Its totient is φ = 33747840.

The previous prime is 125506181. The next prime is 125506211. The reversal of 125506206 is 602605521.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 125506206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3340 + ... + 16191.

It is an arithmetic number, because the mean of its divisors is an integer number (5273640).

Almost surely, 2^125506206 is an apocalyptic number.

125506206 is an abundant number, since it is smaller than the sum of its proper divisors (212006754).

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

125506206 is a wasteful number, since it uses less digits than its factorization.

125506206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19566 (or 19560 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 125506206 is about 11202.9552351154. The cubic root of 125506206 is about 500.6740322860.

The spelling of 125506206 in words is "one hundred twenty-five million, five hundred six thousand, two hundred six".