53356287 has 8 divisors (see below), whose sum is σ = 72144000. Its totient is φ = 35069720.

The previous prime is 53356279. The next prime is 53356307. The reversal of 53356287 is 78265335.

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 53356287 - 2³ = 53356279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53356267) 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, 125037 + ... + 125462.

It is an arithmetic number, because the mean of its divisors is an integer number (9018000).

Almost surely, 2^53356287 is an apocalyptic number.

53356287 is a deficient number, since it is larger than the sum of its proper divisors (18787713).

53356287 is a wasteful number, since it uses less digits than its factorization.

53356287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250573.

The product of its digits is 151200, while the sum is 39.

The square root of 53356287 is about 7304.5387944757. The cubic root of 53356287 is about 376.4684043756.

The spelling of 53356287 in words is "fifty-three million, three hundred fifty-six thousand, two hundred eighty-seven".