125425840 has 120 divisors (see below), whose sum is σ = 318046608. Its totient is φ = 45964800.

The previous prime is 125425789. The next prime is 125425843. The reversal of 125425840 is 48524521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125425843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1241790 + ... + 1241890.

Almost surely, 2^125425840 is an apocalyptic number.

125425840 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 125425840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159023304).

125425840 is an abundant number, since it is smaller than the sum of its proper divisors (192620768).

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

125425840 is a wasteful number, since it uses less digits than its factorization.

125425840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 125425840 is about 11199.3678393024. The cubic root of 125425840 is about 500.5671431208.

The spelling of 125425840 in words is "one hundred twenty-five million, four hundred twenty-five thousand, eight hundred forty".