125906220 has 72 divisors (see below), whose sum is σ = 416641680. Its totient is φ = 30522240.

The previous prime is 125906219. The next prime is 125906237. The reversal of 125906220 is 22609521.

125906220 is a `hidden beast` number, since 12 + 590 + 62 + 2 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29815 + ... + 33774.

It is an arithmetic number, because the mean of its divisors is an integer number (5786690).

Almost surely, 2^125906220 is an apocalyptic number.

125906220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125906220 is an abundant number, since it is smaller than the sum of its proper divisors (290735460).

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

125906220 is a wasteful number, since it uses less digits than its factorization.

125906220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63615 (or 63610 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 125906220 is about 11220.7940895464. The cubic root of 125906220 is about 501.2053850917.

The spelling of 125906220 in words is "one hundred twenty-five million, nine hundred six thousand, two hundred twenty".