65252399 has 2 divisors, whose sum is σ = 65252400. Its totient is φ = 65252398.

The previous prime is 65252389. The next prime is 65252413. The reversal of 65252399 is 99325256.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65252399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65252389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32626199 + 32626200.

It is an arithmetic number, because the mean of its divisors is an integer number (32626200).

Almost surely, 2^65252399 is an apocalyptic number.

65252399 is a deficient number, since it is larger than the sum of its proper divisors (1).

65252399 is an equidigital number, since it uses as much as digits as its factorization.

65252399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145800, while the sum is 41.

The square root of 65252399 is about 8077.8957037090. The cubic root of 65252399 is about 402.5923278803.

The spelling of 65252399 in words is "sixty-five million, two hundred fifty-two thousand, three hundred ninety-nine".