551721400294 has 8 divisors (see below), whose sum is σ = 827589435120. Its totient is φ = 275858255256.

The previous prime is 551721400291. The next prime is 551721400301. The reversal of 551721400294 is 492004127155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551721400291) 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 in 3 ways as a sum of consecutive naturals, for example, 925989 + ... + 1400320.

It is an arithmetic number, because the mean of its divisors is an integer number (103448679390).

Almost surely, 2^551721400294 is an apocalyptic number.

551721400294 is a deficient number, since it is larger than the sum of its proper divisors (275868034826).

551721400294 is a wasteful number, since it uses less digits than its factorization.

551721400294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444894.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 551721400294 in words is "five hundred fifty-one billion, seven hundred twenty-one million, four hundred thousand, two hundred ninety-four".