65252015 has 4 divisors (see below), whose sum is σ = 78302424. Its totient is φ = 52201608.

The previous prime is 65252009. The next prime is 65252039. The reversal of 65252015 is 51025256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65252015 - 2¹⁴ = 65235631 is a prime.

It is a super-4 number, since 4×65252015⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6525197 + ... + 6525206.

It is an arithmetic number, because the mean of its divisors is an integer number (19575606).

Almost surely, 2^65252015 is an apocalyptic number.

65252015 is a deficient number, since it is larger than the sum of its proper divisors (13050409).

65252015 is a wasteful number, since it uses less digits than its factorization.

65252015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13050408.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 65252015 is about 8077.8719351077. The cubic root of 65252015 is about 402.5915381481.

The spelling of 65252015 in words is "sixty-five million, two hundred fifty-two thousand, fifteen".