125545020 has 48 divisors (see below), whose sum is σ = 355023648. Its totient is φ = 33145600.

The previous prime is 125544977. The next prime is 125545061. The reversal of 125545020 is 20545521.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 4299 + ... + 16418.

It is an arithmetic number, because the mean of its divisors is an integer number (7396326).

Almost surely, 2^125545020 is an apocalyptic number.

125545020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125545020 is an abundant number, since it is smaller than the sum of its proper divisors (229478628).

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

125545020 is a wasteful number, since it uses less digits than its factorization.

125545020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20830 (or 20828 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 125545020 is about 11204.6874119718. The cubic root of 125545020 is about 500.7256397179.

The spelling of 125545020 in words is "one hundred twenty-five million, five hundred forty-five thousand, twenty".