52987539 has 16 divisors (see below), whose sum is σ = 78954624. Its totient is φ = 31329600.

The previous prime is 52987537. The next prime is 52987541. The reversal of 52987539 is 93578925.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52987537) and next prime (52987541).

It is not a de Polignac number, because 52987539 - 2¹ = 52987537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52987537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18229 + ... + 20934.

It is an arithmetic number, because the mean of its divisors is an integer number (4934664).

Almost surely, 2^52987539 is an apocalyptic number.

52987539 is a deficient number, since it is larger than the sum of its proper divisors (25967085).

52987539 is a wasteful number, since it uses less digits than its factorization.

52987539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39218.

The product of its digits is 680400, while the sum is 48.

The square root of 52987539 is about 7279.2540139770. The cubic root of 52987539 is about 375.5991347016.

The spelling of 52987539 in words is "fifty-two million, nine hundred eighty-seven thousand, five hundred thirty-nine".