52081688 has 8 divisors (see below), whose sum is σ = 97653180. Its totient is φ = 26040840.

The previous prime is 52081663. The next prime is 52081723. The reversal of 52081688 is 88618025.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3255098 + ... + 3255113.

Almost surely, 2^52081688 is an apocalyptic number.

It is an amenable number.

52081688 is a deficient number, since it is larger than the sum of its proper divisors (45571492).

52081688 is a wasteful number, since it uses less digits than its factorization.

52081688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510217 (or 6510213 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 52081688 is about 7216.7643719329. The cubic root of 52081688 is about 373.4464630226.

The spelling of 52081688 in words is "fifty-two million, eighty-one thousand, six hundred eighty-eight".