52691535 has 24 divisors (see below), whose sum is σ = 98358624. Its totient is φ = 25940160.

The previous prime is 52691533. The next prime is 52691539. The reversal of 52691535 is 53519625.

It is not a de Polignac number, because 52691535 - 2¹ = 52691533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52691535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52691531) 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, 44451 + ... + 45620.

It is an arithmetic number, because the mean of its divisors is an integer number (4098276).

Almost surely, 2^52691535 is an apocalyptic number.

52691535 is a deficient number, since it is larger than the sum of its proper divisors (45667089).

52691535 is a wasteful number, since it uses less digits than its factorization.

52691535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90095 (or 90092 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 52691535 is about 7258.8935107219. The cubic root of 52691535 is about 374.8984258230.

The spelling of 52691535 in words is "fifty-two million, six hundred ninety-one thousand, five hundred thirty-five".