55415400515 has 16 divisors (see below), whose sum is σ = 68679187200. Its totient is φ = 42879999360.

The previous prime is 55415400503. The next prime is 55415400527. The reversal of 55415400515 is 51500451455.

It is an interprime number because it is at equal distance from previous prime (55415400503) and next prime (55415400527).

It is not a de Polignac number, because 55415400515 - 2¹⁴ = 55415384131 is a prime.

It is a super-2 number, since 2×55415400515² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 210377 + ... + 393813.

It is an arithmetic number, because the mean of its divisors is an integer number (4292449200).

Almost surely, 2^55415400515 is an apocalyptic number.

55415400515 is a deficient number, since it is larger than the sum of its proper divisors (13263786685).

55415400515 is a wasteful number, since it uses less digits than its factorization.

55415400515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185422.

The product of its (nonzero) digits is 50000, while the sum is 35.

The spelling of 55415400515 in words is "fifty-five billion, four hundred fifteen million, four hundred thousand, five hundred fifteen".