55658057 has 16 divisors (see below), whose sum is σ = 69336960. Its totient is φ = 43500672.

The previous prime is 55658041. The next prime is 55658089. The reversal of 55658057 is 75085655.

It is a cyclic number.

It is not a de Polignac number, because 55658057 - 2⁴ = 55658041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55658257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3869 + ... + 11237.

It is an arithmetic number, because the mean of its divisors is an integer number (4333560).

Almost surely, 2^55658057 is an apocalyptic number.

It is an amenable number.

55658057 is a deficient number, since it is larger than the sum of its proper divisors (13678903).

55658057 is a wasteful number, since it uses less digits than its factorization.

55658057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7472.

The product of its (nonzero) digits is 210000, while the sum is 41.

The square root of 55658057 is about 7460.4327622464. The cubic root of 55658057 is about 381.8059397350.

The spelling of 55658057 in words is "fifty-five million, six hundred fifty-eight thousand, fifty-seven".