55688064 has 32 divisors (see below), whose sum is σ = 147922440. Its totient is φ = 18562560.

The previous prime is 55688051. The next prime is 55688077. The reversal of 55688064 is 46088655.

It is an interprime number because it is at equal distance from previous prime (55688051) and next prime (55688077).

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72127 + ... + 72894.

Almost surely, 2^55688064 is an apocalyptic number.

It is an amenable number.

55688064 is an abundant number, since it is smaller than the sum of its proper divisors (92234376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55688064 is a wasteful number, since it uses less digits than its factorization.

55688064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145038 (or 145026 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 55688064 is about 7462.4435676258. The cubic root of 55688064 is about 381.8745419174.

The spelling of 55688064 in words is "fifty-five million, six hundred eighty-eight thousand, sixty-four".