1245512241225 has 36 divisors (see below), whose sum is σ = 2549543790976. Its totient is φ = 569377023840.

The previous prime is 1245512241173. The next prime is 1245512241229. The reversal of 1245512241225 is 5221422155421.

It is a happy number.

1245512241225 is a `hidden beast` number, since 1 + 24 + 551 + 22 + 41 + 2 + 25 = 666.

It is not a de Polignac number, because 1245512241225 - 2¹⁰ = 1245512240201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1245512241225.

It is not an unprimeable number, because it can be changed into a prime (1245512241229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 395399137 + ... + 395402286.

Almost surely, 2^{1245512241225} is an apocalyptic number.

1245512241225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1245512241225 is an abundant number, since it is smaller than the sum of its proper divisors (1304031549751).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245512241225 is a wasteful number, since it uses less digits than its factorization.

1245512241225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790801446 (or 790801438 counting only the distinct ones).

The product of its digits is 64000, while the sum is 36.

Adding to 1245512241225 its reverse (5221422155421), we get a palindrome (6466934396646).

The spelling of 1245512241225 in words is "one trillion, two hundred forty-five billion, five hundred twelve million, two hundred forty-one thousand, two hundred twenty-five".