636055048 has 8 divisors (see below), whose sum is σ = 1192603230. Its totient is φ = 318027520.

The previous prime is 636055037. The next prime is 636055061. The reversal of 636055048 is 840550636.

It can be written as a sum of positive squares in only one way, i.e., 470109124 + 165945924 = 21682^2 + 12882^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 636054998 and 636055016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39753433 + ... + 39753448.

Almost surely, 2^636055048 is an apocalyptic number.

It is an amenable number.

636055048 is a deficient number, since it is larger than the sum of its proper divisors (556548182).

636055048 is a wasteful number, since it uses less digits than its factorization.

636055048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79506887 (or 79506883 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 636055048 is about 25220.1317998142. The cubic root of 636055048 is about 859.9995709390. Note that the first 3 decimals are identical.

The spelling of 636055048 in words is "six hundred thirty-six million, fifty-five thousand, forty-eight".