125422400 has 84 divisors (see below), whose sum is σ = 315967872. Its totient is φ = 48975360.

The previous prime is 125422397. The next prime is 125422411. The reversal of 125422400 is 4224521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67889 + ... + 69711.

Almost surely, 2^125422400 is an apocalyptic number.

125422400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125422400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157983936).

125422400 is an abundant number, since it is smaller than the sum of its proper divisors (190545472).

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

125422400 is a wasteful number, since it uses less digits than its factorization.

125422400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888 (or 1873 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 125422400 is about 11199.2142581522. The cubic root of 125422400 is about 500.5625667998.

Adding to 125422400 its reverse (4224521), we get a palindrome (129646921).

The spelling of 125422400 in words is "one hundred twenty-five million, four hundred twenty-two thousand, four hundred".