53303287 has 2 divisors, whose sum is σ = 53303288. Its totient is φ = 53303286.

The previous prime is 53303281. The next prime is 53303293. The reversal of 53303287 is 78230335.

It is a balanced prime because it is at equal distance from previous prime (53303281) and next prime (53303293).

It is a cyclic number.

It is not a de Polignac number, because 53303287 - 2²³ = 44914679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53303281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26651643 + 26651644.

It is an arithmetic number, because the mean of its divisors is an integer number (26651644).

Almost surely, 2^53303287 is an apocalyptic number.

53303287 is a deficient number, since it is larger than the sum of its proper divisors (1).

53303287 is an equidigital number, since it uses as much as digits as its factorization.

53303287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 53303287 is about 7300.9100117725. The cubic root of 53303287 is about 376.3437115685.

It can be divided in two parts, 5330328 and 7, that added together give a palindrome (5330335).

The spelling of 53303287 in words is "fifty-three million, three hundred three thousand, two hundred eighty-seven".