52515985 has 8 divisors (see below), whose sum is σ = 63074880. Its totient is φ = 41975664.

The previous prime is 52515979. The next prime is 52515997. The reversal of 52515985 is 58951525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52515985 - 2⁹ = 52515473 is a prime.

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, 2614 + ... + 10576.

It is an arithmetic number, because the mean of its divisors is an integer number (7884360).

Almost surely, 2^52515985 is an apocalyptic number.

It is an amenable number.

52515985 is a deficient number, since it is larger than the sum of its proper divisors (10558895).

52515985 is a wasteful number, since it uses less digits than its factorization.

52515985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9287.

The product of its digits is 90000, while the sum is 40.

The square root of 52515985 is about 7246.7913589395. The cubic root of 52515985 is about 374.4816185602.

It can be divided in two parts, 5251 and 5985, that added together give a square (11236 = 106²).

The spelling of 52515985 in words is "fifty-two million, five hundred fifteen thousand, nine hundred eighty-five".