65020519 has 2 divisors, whose sum is σ = 65020520. Its totient is φ = 65020518.

The previous prime is 65020511. The next prime is 65020531. The reversal of 65020519 is 91502056.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65020519 - 2³ = 65020511 is a prime.

It is a super-2 number, since 2×65020519² = 8455335782058722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65020511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32510259 + 32510260.

It is an arithmetic number, because the mean of its divisors is an integer number (32510260).

Almost surely, 2^65020519 is an apocalyptic number.

65020519 is a deficient number, since it is larger than the sum of its proper divisors (1).

65020519 is an equidigital number, since it uses as much as digits as its factorization.

65020519 is an evil number, because the sum of its binary digits is even.

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

The square root of 65020519 is about 8063.5301822465. The cubic root of 65020519 is about 402.1148797523.

The spelling of 65020519 in words is "sixty-five million, twenty thousand, five hundred nineteen".