52481387 has 16 divisors (see below), whose sum is σ = 62346240. Its totient is φ = 43223712.

The previous prime is 52481383. The next prime is 52481389. The reversal of 52481387 is 78318425.

52481387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52481387 - 2² = 52481383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52481387.

It is not an unprimeable number, because it can be changed into a prime (52481383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52898 + ... + 53880.

It is an arithmetic number, because the mean of its divisors is an integer number (3896640).

Almost surely, 2^52481387 is an apocalyptic number.

52481387 is a deficient number, since it is larger than the sum of its proper divisors (9864853).

52481387 is a wasteful number, since it uses less digits than its factorization.

52481387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282.

The product of its digits is 53760, while the sum is 38.

The square root of 52481387 is about 7244.4038402066. The cubic root of 52481387 is about 374.3993632156.

The spelling of 52481387 in words is "fifty-two million, four hundred eighty-one thousand, three hundred eighty-seven".