1225550354245 has 64 divisors (see below), whose sum is σ = 1766985891840. Its totient is φ = 798360998400.

The previous prime is 1225550354243. The next prime is 1225550354261. The reversal of 1225550354245 is 5424530555221.

It is not a de Polignac number, because 1225550354245 - 2¹ = 1225550354243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225550354243) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17915016 + ... + 17983294.

It is an arithmetic number, because the mean of its divisors is an integer number (27609154560).

Almost surely, 2^{1225550354245} is an apocalyptic number.

It is an amenable number.

1225550354245 is a deficient number, since it is larger than the sum of its proper divisors (541435537595).

1225550354245 is a wasteful number, since it uses less digits than its factorization.

1225550354245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68626.

The product of its (nonzero) digits is 1200000, while the sum is 43.

The spelling of 1225550354245 in words is "one trillion, two hundred twenty-five billion, five hundred fifty million, three hundred fifty-four thousand, two hundred forty-five".