52071663 has 48 divisors (see below), whose sum is σ = 87070464. Its totient is φ = 27498240.

The previous prime is 52071659. The next prime is 52071713. The reversal of 52071663 is 36617025.

It is not a de Polignac number, because 52071663 - 2² = 52071659 is a prime.

It is a super-2 number, since 2×52071663² = 5422916175171138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52071663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52071653) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 167278 + ... + 167588.

It is an arithmetic number, because the mean of its divisors is an integer number (1813968).

Almost surely, 2^52071663 is an apocalyptic number.

52071663 is a deficient number, since it is larger than the sum of its proper divisors (34998801).

52071663 is a wasteful number, since it uses less digits than its factorization.

52071663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 52071663 is about 7216.0697751615. The cubic root of 52071663 is about 373.4225004030.

Adding to 52071663 its reverse (36617025), we get a palindrome (88688688).

The spelling of 52071663 in words is "fifty-two million, seventy-one thousand, six hundred sixty-three".