1687055052 has 24 divisors (see below), whose sum is σ = 3939211696. Its totient is φ = 561958848.

The previous prime is 1687055017. The next prime is 1687055099. The reversal of 1687055052 is 2505507861.

It is a self number, because there is not a number n which added to its sum of digits gives 1687055052.

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, 30943 + ... + 65814.

Almost surely, 2^1687055052 is an apocalyptic number.

1687055052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1687055052 is an abundant number, since it is smaller than the sum of its proper divisors (2252156644).

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

1687055052 is a wasteful number, since it uses less digits than its factorization.

1687055052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98217 (or 98215 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 39.

The square root of 1687055052 is about 41073.7757212555. The cubic root of 1687055052 is about 1190.4461411227.

The spelling of 1687055052 in words is "one billion, six hundred eighty-seven million, fifty-five thousand, fifty-two".