52987121 has 8 divisors (see below), whose sum is σ = 58895424. Its totient is φ = 47260720.

The previous prime is 52987111. The next prime is 52987127. The reversal of 52987121 is 12178925.

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 52987121 - 2⁶ = 52987057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52987127) 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 7 ways as a sum of consecutive naturals, for example, 44861 + ... + 46026.

It is an arithmetic number, because the mean of its divisors is an integer number (7361928).

Almost surely, 2^52987121 is an apocalyptic number.

It is an amenable number.

52987121 is a deficient number, since it is larger than the sum of its proper divisors (5908303).

52987121 is a wasteful number, since it uses less digits than its factorization.

52987121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90951.

The product of its digits is 10080, while the sum is 35.

The square root of 52987121 is about 7279.2253021870. The cubic root of 52987121 is about 375.5981470427.

The spelling of 52987121 in words is "fifty-two million, nine hundred eighty-seven thousand, one hundred twenty-one".