53530287 has 16 divisors (see below), whose sum is σ = 73006080. Its totient is φ = 34877952.

The previous prime is 53530271. The next prime is 53530333. The reversal of 53530287 is 78203535.

It is not a de Polignac number, because 53530287 - 2⁴ = 53530271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53537287) 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, 33378 + ... + 34944.

It is an arithmetic number, because the mean of its divisors is an integer number (4562880).

Almost surely, 2^53530287 is an apocalyptic number.

53530287 is a deficient number, since it is larger than the sum of its proper divisors (19475793).

53530287 is a wasteful number, since it uses less digits than its factorization.

53530287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 53530287 is about 7316.4395029276. The cubic root of 53530287 is about 376.8771935936.

The spelling of 53530287 in words is "fifty-three million, five hundred thirty thousand, two hundred eighty-seven".