1550515235225 has 48 divisors (see below), whose sum is σ = 2114054691840. Its totient is φ = 1118741491200.

The previous prime is 1550515235189. The next prime is 1550515235239. The reversal of 1550515235225 is 5225325150551.

It is a de Polignac number, because none of the positive numbers 2^k-1550515235225 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 17705096 + ... + 17792454.

It is an arithmetic number, because the mean of its divisors is an integer number (44042806080).

Almost surely, 2^{1550515235225} is an apocalyptic number.

It is an amenable number.

1550515235225 is a deficient number, since it is larger than the sum of its proper divisors (563539456615).

1550515235225 is a wasteful number, since it uses less digits than its factorization.

1550515235225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87890 (or 87885 counting only the distinct ones).

The product of its (nonzero) digits is 375000, while the sum is 41.

The spelling of 1550515235225 in words is "one trillion, five hundred fifty billion, five hundred fifteen million, two hundred thirty-five thousand, two hundred twenty-five".