551515245225 has 24 divisors (see below), whose sum is σ = 1042101188160. Its totient is φ = 252121254720.

The previous prime is 551515245223. The next prime is 551515245257. The reversal of 551515245225 is 522542515155.

It is not a de Polignac number, because 551515245225 - 2¹ = 551515245223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551515245223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 525252090 + ... + 525253139.

It is an arithmetic number, because the mean of its divisors is an integer number (43420882840).

Almost surely, 2^551515245225 is an apocalyptic number.

It is an amenable number.

551515245225 is a deficient number, since it is larger than the sum of its proper divisors (490585942935).

551515245225 is a wasteful number, since it uses less digits than its factorization.

551515245225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050505249 (or 1050505244 counting only the distinct ones).

The product of its digits is 500000, while the sum is 42.

The spelling of 551515245225 in words is "five hundred fifty-one billion, five hundred fifteen million, two hundred forty-five thousand, two hundred twenty-five".