52989505 has 4 divisors (see below), whose sum is σ = 63587412. Its totient is φ = 42391600.

The previous prime is 52989491. The next prime is 52989511. The reversal of 52989505 is 50598925.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40094224 + 12895281 = 6332^2 + 3591^2 .

It is not a de Polignac number, because 52989505 - 2¹⁷ = 52858433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5298946 + ... + 5298955.

It is an arithmetic number, because the mean of its divisors is an integer number (15896853).

Almost surely, 2^52989505 is an apocalyptic number.

It is an amenable number.

52989505 is a deficient number, since it is larger than the sum of its proper divisors (10597907).

52989505 is a wasteful number, since it uses less digits than its factorization.

52989505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10597906.

The product of its (nonzero) digits is 162000, while the sum is 43.

The square root of 52989505 is about 7279.3890540347. The cubic root of 52989505 is about 375.6037799370.

The spelling of 52989505 in words is "fifty-two million, nine hundred eighty-nine thousand, five hundred five".