551205242451 has 6 divisors (see below), whose sum is σ = 796185350220. Its totient is φ = 367470161628.

The previous prime is 551205242443. The next prime is 551205242473. The reversal of 551205242451 is 154242502155.

551205242451 is a `hidden beast` number, since 5 + 5 + 120 + 524 + 2 + 4 + 5 + 1 = 666.

It is not a de Polignac number, because 551205242451 - 2³ = 551205242443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551205242851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30622513461 + ... + 30622513478.

It is an arithmetic number, because the mean of its divisors is an integer number (132697558370).

Almost surely, 2^551205242451 is an apocalyptic number.

551205242451 is a deficient number, since it is larger than the sum of its proper divisors (244980107769).

551205242451 is a wasteful number, since it uses less digits than its factorization.

551205242451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61245026945 (or 61245026942 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 551205242451 in words is "five hundred fifty-one billion, two hundred five million, two hundred forty-two thousand, four hundred fifty-one".