52791687 has 24 divisors (see below), whose sum is σ = 84957600. Its totient is φ = 31364928.

The previous prime is 52791677. The next prime is 52791689. The reversal of 52791687 is 78619725.

It is not a de Polignac number, because 52791687 - 2⁶ = 52791623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52791689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4387 + ... + 11172.

It is an arithmetic number, because the mean of its divisors is an integer number (3539900).

Almost surely, 2^52791687 is an apocalyptic number.

52791687 is a deficient number, since it is larger than the sum of its proper divisors (32165913).

52791687 is a wasteful number, since it uses less digits than its factorization.

52791687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15607 (or 15604 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 52791687 is about 7265.7888078308. The cubic root of 52791687 is about 375.1358014820.

The spelling of 52791687 in words is "fifty-two million, seven hundred ninety-one thousand, six hundred eighty-seven".