65020015 has 8 divisors (see below), whose sum is σ = 78105888. Its totient is φ = 51961440.

The previous prime is 65020013. The next prime is 65020027. The reversal of 65020015 is 51002056.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65020015 - 2¹ = 65020013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65019974 and 65020001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65020013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1152 + ... + 11461.

It is an arithmetic number, because the mean of its divisors is an integer number (9763236).

Almost surely, 2^65020015 is an apocalyptic number.

65020015 is a deficient number, since it is larger than the sum of its proper divisors (13085873).

65020015 is a wasteful number, since it uses less digits than its factorization.

65020015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13649.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 65020015 is about 8063.4989303652. The cubic root of 65020015 is about 402.1138407653.

The spelling of 65020015 in words is "sixty-five million, twenty thousand, fifteen".