1205556325325 has 24 divisors (see below), whose sum is σ = 1647601213440. Its totient is φ = 867729369600.

The previous prime is 1205556325291. The next prime is 1205556325327. The reversal of 1205556325325 is 5235236555021.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1205556325325 is a prime.

It is a super-2 number, since 2×1205556325325² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205556325327) 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, 22570445 + ... + 22623794.

It is an arithmetic number, because the mean of its divisors is an integer number (68650050560).

Almost surely, 2^{1205556325325} is an apocalyptic number.

It is an amenable number.

1205556325325 is a deficient number, since it is larger than the sum of its proper divisors (442044888115).

1205556325325 is a wasteful number, since it uses less digits than its factorization.

1205556325325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45194357 (or 45194352 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 44.

The spelling of 1205556325325 in words is "one trillion, two hundred five billion, five hundred fifty-six million, three hundred twenty-five thousand, three hundred twenty-five".