65372519 has 2 divisors, whose sum is σ = 65372520. Its totient is φ = 65372518.

The previous prime is 65372501. The next prime is 65372533. The reversal of 65372519 is 91527356.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65372519 is a prime.

It is a super-2 number, since 2×65372519² = 8547132480810722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65362519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32686259 + 32686260.

It is an arithmetic number, because the mean of its divisors is an integer number (32686260).

Almost surely, 2^65372519 is an apocalyptic number.

65372519 is a deficient number, since it is larger than the sum of its proper divisors (1).

65372519 is an equidigital number, since it uses as much as digits as its factorization.

65372519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 38.

The square root of 65372519 is about 8085.3273897845. The cubic root of 65372519 is about 402.8392140603.

The spelling of 65372519 in words is "sixty-five million, three hundred seventy-two thousand, five hundred nineteen".