3525506380845 has 48 divisors (see below), whose sum is σ = 6472625805360. Its totient is φ = 1769041078272.

The previous prime is 3525506380789. The next prime is 3525506380859. The reversal of 3525506380845 is 5480836055253.

It is a happy number.

3525506380845 is a `hidden beast` number, since 3 + 5 + 2 + 550 + 6 + 3 + 8 + 0 + 84 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 111100889124 + 3414405491721 = 333318^2 + 1847811^2 .

It is not a de Polignac number, because 3525506380845 - 2²² = 3525502186541 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3525506380791 and 3525506380800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1358091 + ... + 2982519.

It is an arithmetic number, because the mean of its divisors is an integer number (134846370945).

Almost surely, 2^{3525506380845} is an apocalyptic number.

It is an amenable number.

3525506380845 is a deficient number, since it is larger than the sum of its proper divisors (2947119424515).

3525506380845 is a wasteful number, since it uses less digits than its factorization.

3525506380845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627294 (or 1627291 counting only the distinct ones).

The product of its (nonzero) digits is 17280000, while the sum is 54.

The spelling of 3525506380845 in words is "three trillion, five hundred twenty-five billion, five hundred six million, three hundred eighty thousand, eight hundred forty-five".