55742961 has 8 divisors (see below), whose sum is σ = 77555520. Its totient is φ = 35546192.

The previous prime is 55742933. The next prime is 55742993. The reversal of 55742961 is 16924755.

55742961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55742961 - 2¹¹ = 55740913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55742161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403866 + ... + 404003.

It is an arithmetic number, because the mean of its divisors is an integer number (9694440).

Almost surely, 2^55742961 is an apocalyptic number.

It is an amenable number.

55742961 is a deficient number, since it is larger than the sum of its proper divisors (21812559).

55742961 is a wasteful number, since it uses less digits than its factorization.

55742961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807895.

The product of its digits is 75600, while the sum is 39.

The square root of 55742961 is about 7466.1208803501. The cubic root of 55742961 is about 381.9999840099. Note that the first 4 decimals are identical.

The spelling of 55742961 in words is "fifty-five million, seven hundred forty-two thousand, nine hundred sixty-one".