421085625250 has 16 divisors (see below), whose sum is σ = 788272290936. Its totient is φ = 168434250000.

The previous prime is 421085625221. The next prime is 421085625283. The reversal of 421085625250 is 52526580124.

It can be written as a sum of positive squares in 4 ways, for example, as 47589858801 + 373495766449 = 218151^2 + 611143^2 .

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, 842171001 + ... + 842171500.

Almost surely, 2^421085625250 is an apocalyptic number.

421085625250 is a deficient number, since it is larger than the sum of its proper divisors (367186665686).

421085625250 is a wasteful number, since it uses less digits than its factorization.

421085625250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684342518 (or 1684342508 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 421085625250 in words is "four hundred twenty-one billion, eighty-five million, six hundred twenty-five thousand, two hundred fifty".