1065638552 has 32 divisors (see below), whose sum is σ = 2191924800. Its totient is φ = 481668000.

The previous prime is 1065638543. The next prime is 1065638569. The reversal of 1065638552 is 2558365601.

1065638552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1065638552² = 2271171047017313408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18074 + ... + 49577.

It is an arithmetic number, because the mean of its divisors is an integer number (68497650).

Almost surely, 2^1065638552 is an apocalyptic number.

It is an amenable number.

1065638552 is an abundant number, since it is smaller than the sum of its proper divisors (1126286248).

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

1065638552 is a wasteful number, since it uses less digits than its factorization.

1065638552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67847 (or 67843 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The square root of 1065638552 is about 32644.1197155016. The cubic root of 1065638552 is about 1021.4175318462.

The spelling of 1065638552 in words is "one billion, sixty-five million, six hundred thirty-eight thousand, five hundred fifty-two".