55156543 has 8 divisors (see below), whose sum is σ = 59926608. Its totient is φ = 50461824.

The previous prime is 55156531. The next prime is 55156561. The reversal of 55156543 is 34565155.

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 55156543 - 2¹³ = 55148351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55156499 and 55156508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55156583) by changing a digit.

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, 17305 + ... + 20242.

It is an arithmetic number, because the mean of its divisors is an integer number (7490826).

Almost surely, 2^55156543 is an apocalyptic number.

55156543 is a deficient number, since it is larger than the sum of its proper divisors (4770065).

55156543 is a wasteful number, since it uses less digits than its factorization.

55156543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37673.

The product of its digits is 45000, while the sum is 34.

The square root of 55156543 is about 7426.7451147862. The cubic root of 55156543 is about 380.6557076919.

The spelling of 55156543 in words is "fifty-five million, one hundred fifty-six thousand, five hundred forty-three".