55688457 has 32 divisors (see below), whose sum is σ = 83427840. Its totient is φ = 32757120.

The previous prime is 55688453. The next prime is 55688491. The reversal of 55688457 is 75488655.

55688457 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 55688457 - 2² = 55688453 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (55688453) 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 31 ways as a sum of consecutive naturals, for example, 196638 + ... + 196920.

It is an arithmetic number, because the mean of its divisors is an integer number (2607120).

Almost surely, 2^55688457 is an apocalyptic number.

It is an amenable number.

55688457 is a deficient number, since it is larger than the sum of its proper divisors (27739383).

55688457 is a wasteful number, since it uses less digits than its factorization.

55688457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453.

The product of its digits is 1344000, while the sum is 48.

The square root of 55688457 is about 7462.4698994368. The cubic root of 55688457 is about 381.8754402328.

The spelling of 55688457 in words is "fifty-five million, six hundred eighty-eight thousand, four hundred fifty-seven".