52515489 has 16 divisors (see below), whose sum is σ = 75600000. Its totient is φ = 32234496.

The previous prime is 52515481. The next prime is 52515523. The reversal of 52515489 is 98451525.

It is not a de Polignac number, because 52515489 - 2³ = 52515481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52515481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16012 + ... + 19010.

It is an arithmetic number, because the mean of its divisors is an integer number (4725000).

Almost surely, 2^52515489 is an apocalyptic number.

It is an amenable number.

52515489 is a deficient number, since it is larger than the sum of its proper divisors (23084511).

52515489 is a wasteful number, since it uses less digits than its factorization.

52515489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464.

The product of its digits is 72000, while the sum is 39.

The square root of 52515489 is about 7246.7571368164. The cubic root of 52515489 is about 374.4804395955.

The spelling of 52515489 in words is "fifty-two million, five hundred fifteen thousand, four hundred eighty-nine".