55156655 has 8 divisors (see below), whose sum is σ = 66285600. Its totient is φ = 44060256.

The previous prime is 55156643. The next prime is 55156667. The reversal of 55156655 is 55665155.

It is an interprime number because it is at equal distance from previous prime (55156643) and next prime (55156667).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55156655 - 2¹⁶ = 55091119 is a prime.

It is a super-4 number, since 4×55156655⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4235 + ... + 11324.

It is an arithmetic number, because the mean of its divisors is an integer number (8285700).

Almost surely, 2^55156655 is an apocalyptic number.

55156655 is a deficient number, since it is larger than the sum of its proper divisors (11128945).

55156655 is a wasteful number, since it uses less digits than its factorization.

55156655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16273.

The product of its digits is 112500, while the sum is 38.

The square root of 55156655 is about 7426.7526550977. The cubic root of 55156655 is about 380.6559653429.

The spelling of 55156655 in words is "fifty-five million, one hundred fifty-six thousand, six hundred fifty-five".