551211354225 has 36 divisors (see below), whose sum is σ = 1128320895936. Its totient is φ = 251982332640.

The previous prime is 551211354223. The next prime is 551211354241. The reversal of 551211354225 is 522453112155.

551211354225 is a `hidden beast` number, since 5 + 512 + 1 + 135 + 4 + 2 + 2 + 5 = 666.

It is not a de Polignac number, because 551211354225 - 2¹ = 551211354223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551211354225.

It is not an unprimeable number, because it can be changed into a prime (551211354223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 174986157 + ... + 174989306.

Almost surely, 2^551211354225 is an apocalyptic number.

It is an amenable number.

551211354225 is an abundant number, since it is smaller than the sum of its proper divisors (577109541711).

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

551211354225 is a wasteful number, since it uses less digits than its factorization.

551211354225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349975486 (or 349975478 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The spelling of 551211354225 in words is "five hundred fifty-one billion, two hundred eleven million, three hundred fifty-four thousand, two hundred twenty-five".