3520611401225 has 12 divisors (see below), whose sum is σ = 4370168048784. Its totient is φ = 2813514984720.

The previous prime is 3520611401213. The next prime is 3520611401249. The reversal of 3520611401225 is 5221041160253.

It is not a de Polignac number, because 3520611401225 - 2²⁶ = 3520544292361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3520611401191 and 3520611401200.

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, 74329259 + ... + 74376608.

It is an arithmetic number, because the mean of its divisors is an integer number (364180670732).

Almost surely, 2^{3520611401225} is an apocalyptic number.

It is an amenable number.

3520611401225 is a deficient number, since it is larger than the sum of its proper divisors (849556647559).

3520611401225 is a wasteful number, since it uses less digits than its factorization.

3520611401225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148706824 (or 148706819 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 3520611401225 its reverse (5221041160253), we get a palindrome (8741652561478).

The spelling of 3520611401225 in words is "three trillion, five hundred twenty billion, six hundred eleven million, four hundred one thousand, two hundred twenty-five".