55250064 has 30 divisors (see below), whose sum is σ = 154623846. Its totient is φ = 18416640.

The previous prime is 55250053. The next prime is 55250077. The reversal of 55250064 is 46005255.

55250064 is a `hidden beast` number, since 552 + 50 + 0 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 54641664 + 608400 = 7392^2 + 780^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191697 + ... + 191984.

Almost surely, 2^55250064 is an apocalyptic number.

It is an amenable number.

55250064 is an abundant number, since it is smaller than the sum of its proper divisors (99373782).

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

55250064 is a wasteful number, since it uses less digits than its factorization.

55250064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383695 (or 383686 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 55250064 is about 7433.0386787639. The cubic root of 55250064 is about 380.8707272178.

The spelling of 55250064 in words is "fifty-five million, two hundred fifty thousand, sixty-four".