65248287 has 16 divisors (see below), whose sum is σ = 93840768. Its totient is φ = 40088160.

The previous prime is 65248259. The next prime is 65248301. The reversal of 65248287 is 78284256.

It is a happy number.

It is not a de Polignac number, because 65248287 - 2¹⁶ = 65182751 is a prime.

It is a super-3 number, since 3×65248287³ (a number of 24 digits) contains 333 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65248237) 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, 37008 + ... + 38730.

It is an arithmetic number, because the mean of its divisors is an integer number (5865048).

Almost surely, 2^65248287 is an apocalyptic number.

65248287 is a deficient number, since it is larger than the sum of its proper divisors (28592481).

65248287 is a wasteful number, since it uses less digits than its factorization.

65248287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710.

The product of its digits is 215040, while the sum is 42.

The square root of 65248287 is about 8077.6411779677. The cubic root of 65248287 is about 402.5838710038.

The spelling of 65248287 in words is "sixty-five million, two hundred forty-eight thousand, two hundred eighty-seven".