2353215521225 has 24 divisors (see below), whose sum is σ = 3106703455128. Its totient is φ = 1762043673600.

The previous prime is 2353215521119. The next prime is 2353215521227. The reversal of 2353215521225 is 5221255123532.

It can be written as a sum of positive squares in 12 ways, for example, as 1517402685241 + 835812835984 = 1231829^2 + 914228^2 .

It is not a de Polignac number, because 2353215521225 - 2¹² = 2353215517129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2353215521227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15218594 + ... + 15372443.

It is an arithmetic number, because the mean of its divisors is an integer number (129445977297).

Almost surely, 2^{2353215521225} is an apocalyptic number.

2353215521225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2353215521225 is a deficient number, since it is larger than the sum of its proper divisors (753487933903).

2353215521225 is a wasteful number, since it uses less digits than its factorization.

2353215521225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30591245 (or 30591240 counting only the distinct ones).

The product of its digits is 180000, while the sum is 38.

The spelling of 2353215521225 in words is "two trillion, three hundred fifty-three billion, two hundred fifteen million, five hundred twenty-one thousand, two hundred twenty-five".