125856280 has 64 divisors (see below), whose sum is σ = 318919680. Its totient is φ = 44284800.

The previous prime is 125856257. The next prime is 125856281. The reversal of 125856280 is 82658521.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125856281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9027 + ... + 18253.

It is an arithmetic number, because the mean of its divisors is an integer number (4983120).

Almost surely, 2^125856280 is an apocalyptic number.

125856280 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 125856280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159459840).

125856280 is an abundant number, since it is smaller than the sum of its proper divisors (193063400).

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

125856280 is a wasteful number, since it uses less digits than its factorization.

125856280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9280 (or 9276 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 125856280 is about 11218.5685361369. The cubic root of 125856280 is about 501.1391095547.

The spelling of 125856280 in words is "one hundred twenty-five million, eight hundred fifty-six thousand, two hundred eighty".