551343650254 has 4 divisors (see below), whose sum is σ = 827015475384. Its totient is φ = 275671825126.

The previous prime is 551343650251. The next prime is 551343650257. The reversal of 551343650254 is 452056343155.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (551343650251) and next prime (551343650257).

It is a self number, because there is not a number n which added to its sum of digits gives 551343650254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551343650251) by changing a digit.

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 as a sum of consecutive naturals, namely, 137835912562 + ... + 137835912565.

It is an arithmetic number, because the mean of its divisors is an integer number (206753868846).

Almost surely, 2^551343650254 is an apocalyptic number.

551343650254 is a deficient number, since it is larger than the sum of its proper divisors (275671825130).

551343650254 is a wasteful number, since it uses less digits than its factorization.

551343650254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275671825129.

The product of its (nonzero) digits is 1080000, while the sum is 43.

The spelling of 551343650254 in words is "five hundred fifty-one billion, three hundred forty-three million, six hundred fifty thousand, two hundred fifty-four".