55330775078 has 16 divisors (see below), whose sum is σ = 83939140080. Its totient is φ = 27351139200.

The previous prime is 55330775057. The next prime is 55330775119. The reversal of 55330775078 is 87057703355.

It is a super-2 number, since 2×55330775078² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2017538 + ... + 2044778.

It is an arithmetic number, because the mean of its divisors is an integer number (5246196255).

Almost surely, 2^55330775078 is an apocalyptic number.

55330775078 is a deficient number, since it is larger than the sum of its proper divisors (28608365002).

55330775078 is a wasteful number, since it uses less digits than its factorization.

55330775078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38743.

The product of its (nonzero) digits is 3087000, while the sum is 50.

The spelling of 55330775078 in words is "fifty-five billion, three hundred thirty million, seven hundred seventy-five thousand, seventy-eight".