551401555255355 has 24 divisors (see below), whose sum is σ = 774877408203600. Its totient is φ = 375566313353280.

The previous prime is 551401555255339. The next prime is 551401555255423. The reversal of 551401555255355 is 553552555104155.

It is not a de Polignac number, because 551401555255355 - 2⁴ = 551401555255339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551401555255355.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7552374881 + ... + 7552447890.

It is an arithmetic number, because the mean of its divisors is an integer number (32286558675150).

Almost surely, 2^{551401555255355} is an apocalyptic number.

551401555255355 is a deficient number, since it is larger than the sum of its proper divisors (223475852948245).

551401555255355 is a wasteful number, since it uses less digits than its factorization.

551401555255355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15104822939 (or 15104822932 counting only the distinct ones).

The product of its (nonzero) digits is 46875000, while the sum is 56.

The spelling of 551401555255355 in words is "five hundred fifty-one trillion, four hundred one billion, five hundred fifty-five million, two hundred fifty-five thousand, three hundred fifty-five".