12354013525 has 18 divisors (see below), whose sum is σ = 17820035970. Its totient is φ = 8471322720.

The previous prime is 12354013513. The next prime is 12354013603. The reversal of 12354013525 is 52531045321.

It can be written as a sum of positive squares in 3 ways, for example, as 3010277956 + 9343735569 = 54866^2 + 96663^2 .

It is not a de Polignac number, because 12354013525 - 2⁹ = 12354013013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5041230 + ... + 5043679.

Almost surely, 2^12354013525 is an apocalyptic number.

It is an amenable number.

12354013525 is a deficient number, since it is larger than the sum of its proper divisors (5466022445).

12354013525 is a wasteful number, since it uses less digits than its factorization.

12354013525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10084933 (or 10084921 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 12354013525 its reverse (52531045321), we get a palindrome (64885058846).

The spelling of 12354013525 in words is "twelve billion, three hundred fifty-four million, thirteen thousand, five hundred twenty-five".