55324148551815 has 256 divisors, whose sum is σ = 106330802909184. Its totient is φ = 24210656870400.

The previous prime is 55324148551801. The next prime is 55324148551843. The reversal of 55324148551815 is 51815584142355.

It is a happy number.

It is not a de Polignac number, because 55324148551815 - 2⁸ = 55324148551559 is a prime.

It is a super-2 number, since 2×55324148551815² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 11972330205 + ... + 11972334825.

It is an arithmetic number, because the mean of its divisors is an integer number (415354698864).

Almost surely, 2^{55324148551815} is an apocalyptic number.

55324148551815 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55324148551815 is a deficient number, since it is larger than the sum of its proper divisors (51006654357369).

55324148551815 is a wasteful number, since it uses less digits than its factorization.

55324148551815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5370.

The product of its digits is 19200000, while the sum is 57.

The spelling of 55324148551815 in words is "fifty-five trillion, three hundred twenty-four billion, one hundred forty-eight million, five hundred fifty-one thousand, eight hundred fifteen".