125200210520 has 64 divisors (see below), whose sum is σ = 351210988800. Its totient is φ = 39023441280.

The previous prime is 125200210463. The next prime is 125200210567. The reversal of 125200210520 is 25012002521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 125200210492 and 125200210501.

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, 20321630 + ... + 20327789.

It is an arithmetic number, because the mean of its divisors is an integer number (5487671700).

Almost surely, 2^125200210520 is an apocalyptic number.

125200210520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125200210520 is an abundant number, since it is smaller than the sum of its proper divisors (226010778280).

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

125200210520 is a wasteful number, since it uses less digits than its factorization.

125200210520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40649448 (or 40649444 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The spelling of 125200210520 in words is "one hundred twenty-five billion, two hundred million, two hundred ten thousand, five hundred twenty".