125666622 has 48 divisors (see below), whose sum is σ = 283690368. Its totient is φ = 40158720.

The previous prime is 125666621. The next prime is 125666633. The reversal of 125666622 is 226666521.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125666621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62058 + ... + 64050.

It is an arithmetic number, because the mean of its divisors is an integer number (5910216).

Almost surely, 2^125666622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125666622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141845184).

125666622 is an abundant number, since it is smaller than the sum of its proper divisors (158023746).

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

125666622 is a wasteful number, since it uses less digits than its factorization.

125666622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145 (or 2142 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 125666622 is about 11210.1124882849. The cubic root of 125666622 is about 500.8872539629.

The spelling of 125666622 in words is "one hundred twenty-five million, six hundred sixty-six thousand, six hundred twenty-two".