4121525443025 has 12 divisors (see below), whose sum is σ = 5125856816652. Its totient is φ = 3287436311040.

The previous prime is 4121525442997. The next prime is 4121525443111. The reversal of 4121525443025 is 5203445251214.

It can be written as a sum of positive squares in 6 ways, for example, as 214071857041 + 3907453585984 = 462679^2 + 1976728^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4121525443025 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4121525443025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244592492 + ... + 244609341.

It is an arithmetic number, because the mean of its divisors is an integer number (427154734721).

Almost surely, 2^{4121525443025} is an apocalyptic number.

It is an amenable number.

4121525443025 is a deficient number, since it is larger than the sum of its proper divisors (1004331373627).

4121525443025 is a wasteful number, since it uses less digits than its factorization.

4121525443025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489202180 (or 489202175 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

The spelling of 4121525443025 in words is "four trillion, one hundred twenty-one billion, five hundred twenty-five million, four hundred forty-three thousand, twenty-five".