125205616 has 20 divisors (see below), whose sum is σ = 244135912. Its totient is φ = 62202816.

The previous prime is 125205601. The next prime is 125205623. The reversal of 125205616 is 616502521.

It is a congruent 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, 22410 + ... + 27433.

Almost surely, 2^125205616 is an apocalyptic number.

125205616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125205616 is a deficient number, since it is larger than the sum of its proper divisors (118930296).

125205616 is a wasteful number, since it uses less digits than its factorization.

125205616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50008 (or 50002 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 125205616 is about 11189.5315362172. The cubic root of 125205616 is about 500.2740044823.

The spelling of 125205616 in words is "one hundred twenty-five million, two hundred five thousand, six hundred sixteen".