12355434025 has 81 divisors (see below), whose sum is σ = 17615521623. Its totient is φ = 8590058400.

The previous prime is 12355434011. The next prime is 12355434031. The reversal of 12355434025 is 52043455321.

The square root of 12355434025 is 111155.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4447956249 + 7907477776 = 66693^2 + 88924^2 .

It is not a de Polignac number, because 12355434025 - 2²¹ = 12353336873 is a prime.

It is a super-2 number, since 2×12355434025² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 262881552 + ... + 262881598.

Almost surely, 2^12355434025 is an apocalyptic number.

12355434025 is the 111155-th square number.

12355434025 is the 55578-th centered octagonal number.

It is an amenable number.

12355434025 is a deficient number, since it is larger than the sum of its proper divisors (5260087598).

12355434025 is an equidigital number, since it uses as much as digits as its factorization.

12355434025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 12355434025 its reverse (52043455321), we get a palindrome (64398889346).

The spelling of 12355434025 in words is "twelve billion, three hundred fifty-five million, four hundred thirty-four thousand, twenty-five".