55388017351 has 4 divisors (see below), whose sum is σ = 55479266752. Its totient is φ = 55296767952.

The previous prime is 55388017331. The next prime is 55388017369. The reversal of 55388017351 is 15371088355.

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

It is a cyclic number.

It is not a de Polignac number, because 55388017351 - 2¹¹ = 55388015303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55388017331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45623790 + ... + 45625003.

It is an arithmetic number, because the mean of its divisors is an integer number (13869816688).

Almost surely, 2^55388017351 is an apocalyptic number.

55388017351 is a deficient number, since it is larger than the sum of its proper divisors (91249401).

55388017351 is an equidigital number, since it uses as much as digits as its factorization.

55388017351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91249400.

The product of its (nonzero) digits is 504000, while the sum is 46.

The spelling of 55388017351 in words is "fifty-five billion, three hundred eighty-eight million, seventeen thousand, three hundred fifty-one".