55156605556 has 12 divisors (see below), whose sum is σ = 103948987492. Its totient is φ = 25456894848.

The previous prime is 55156605533. The next prime is 55156605577. The reversal of 55156605556 is 65550665155.

55156605556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 27500915556 + 27655690000 = 165834^2 + 166300^2 .

It is a super-2 number, since 2×55156605556² (a number of 22 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 3 ways as a sum of consecutive naturals, for example, 530351925 + ... + 530352028.

Almost surely, 2^55156605556 is an apocalyptic number.

It is an amenable number.

55156605556 is a deficient number, since it is larger than the sum of its proper divisors (48792381936).

55156605556 is a wasteful number, since it uses less digits than its factorization.

55156605556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060703970 (or 1060703968 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 49.

The spelling of 55156605556 in words is "fifty-five billion, one hundred fifty-six million, six hundred five thousand, five hundred fifty-six".