65020915 has 8 divisors (see below), whose sum is σ = 78135120. Its totient is φ = 51943392.

The previous prime is 65020909. The next prime is 65020927. The reversal of 65020915 is 51902056.

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 65020915 - 2⁵ = 65020883 is a prime.

It is a super-4 number, since 4×65020915⁴ (a number of 32 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5104 + ... + 12493.

It is an arithmetic number, because the mean of its divisors is an integer number (9766890).

Almost surely, 2^65020915 is an apocalyptic number.

65020915 is a deficient number, since it is larger than the sum of its proper divisors (13114205).

65020915 is a wasteful number, since it uses less digits than its factorization.

65020915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18341.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 65020915 is about 8063.5547372111. The cubic root of 65020915 is about 402.1156960955.

The spelling of 65020915 in words is "sixty-five million, twenty thousand, nine hundred fifteen".