53987061 has 8 divisors (see below), whose sum is σ = 72238240. Its totient is φ = 35863632.

The previous prime is 53987047. The next prime is 53987069. The reversal of 53987061 is 16078935.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53987061 - 2⁵ = 53987029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53987069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30946 + ... + 32643.

It is an arithmetic number, because the mean of its divisors is an integer number (9029780).

Almost surely, 2^53987061 is an apocalyptic number.

It is an amenable number.

53987061 is a deficient number, since it is larger than the sum of its proper divisors (18251179).

53987061 is a wasteful number, since it uses less digits than its factorization.

53987061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63875.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 53987061 is about 7347.5887881672. The cubic root of 53987061 is about 377.9461234487.

The spelling of 53987061 in words is "fifty-three million, nine hundred eighty-seven thousand, sixty-one".