55540022156 has 24 divisors (see below), whose sum is σ = 102466502880. Its totient is φ = 26288773632.

The previous prime is 55540022147. The next prime is 55540022183. The reversal of 55540022156 is 65122004555.

It is a super-2 number, since 2×55540022156² (a number of 22 digits) contains 22 as substring.

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, 3102911 + ... + 3120758.

It is an arithmetic number, because the mean of its divisors is an integer number (4269437620).

Almost surely, 2^55540022156 is an apocalyptic number.

It is an amenable number.

55540022156 is a deficient number, since it is larger than the sum of its proper divisors (46926480724).

55540022156 is a wasteful number, since it uses less digits than its factorization.

55540022156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6223793 (or 6223791 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 55540022156 in words is "fifty-five billion, five hundred forty million, twenty-two thousand, one hundred fifty-six".