125532400 has 120 divisors (see below), whose sum is σ = 348727680. Its totient is φ = 42535680.

The previous prime is 125532391. The next prime is 125532401. The reversal of 125532400 is 4235521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125532401) 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, 299391 + ... + 299809.

It is an arithmetic number, because the mean of its divisors is an integer number (2906064).

Almost surely, 2^125532400 is an apocalyptic number.

125532400 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 125532400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174363840).

125532400 is an abundant number, since it is smaller than the sum of its proper divisors (223195280).

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

125532400 is a wasteful number, since it uses less digits than its factorization.

125532400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 125532400 is about 11204.1242406535. The cubic root of 125532400 is about 500.7088612233.

Adding to 125532400 its reverse (4235521), we get a palindrome (129767921).

The spelling of 125532400 in words is "one hundred twenty-five million, five hundred thirty-two thousand, four hundred".