55742057 has 12 divisors (see below), whose sum is σ = 65814480. Its totient is φ = 47063016.

The previous prime is 55742051. The next prime is 55742059. The reversal of 55742057 is 75024755.

It is a happy number.

55742057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55742057 - 2⁶ = 55741993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55742051) 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 11 ways as a sum of consecutive naturals, for example, 5207 + ... + 11772.

It is an arithmetic number, because the mean of its divisors is an integer number (5484540).

Almost surely, 2^55742057 is an apocalyptic number.

It is an amenable number.

55742057 is a deficient number, since it is larger than the sum of its proper divisors (10072423).

55742057 is a wasteful number, since it uses less digits than its factorization.

55742057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17060 (or 17053 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 55742057 is about 7466.0603399651. The cubic root of 55742057 is about 381.9979189967.

The spelling of 55742057 in words is "fifty-five million, seven hundred forty-two thousand, fifty-seven".