125500240 has 40 divisors (see below), whose sum is σ = 292267008. Its totient is φ = 50117760.

The previous prime is 125500223. The next prime is 125500253. The reversal of 125500240 is 42005521.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 78489 + ... + 80071.

Almost surely, 2^125500240 is an apocalyptic number.

125500240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125500240 is an abundant number, since it is smaller than the sum of its proper divisors (166766768).

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

125500240 is a wasteful number, since it uses less digits than its factorization.

125500240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587 (or 2581 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 125500240 is about 11202.6889629231. The cubic root of 125500240 is about 500.6660988971. Note that the first 3 decimals are identical.

Adding to 125500240 its reverse (42005521), we get a palindrome (167505761).

The spelling of 125500240 in words is "one hundred twenty-five million, five hundred thousand, two hundred forty".