65252569 has 2 divisors, whose sum is σ = 65252570. Its totient is φ = 65252568.

The previous prime is 65252549. The next prime is 65252597. The reversal of 65252569 is 96525256.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46416969 + 18835600 = 6813^2 + 4340^2 .

It is a cyclic number.

It is not a de Polignac number, because 65252569 - 2¹⁵ = 65219801 is a prime.

It is a super-2 number, since 2×65252569² = 8515795522199522, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (65252549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32626284 + 32626285.

It is an arithmetic number, because the mean of its divisors is an integer number (32626285).

Almost surely, 2^65252569 is an apocalyptic number.

It is an amenable number.

65252569 is a deficient number, since it is larger than the sum of its proper divisors (1).

65252569 is an equidigital number, since it uses as much as digits as its factorization.

65252569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 40.

The square root of 65252569 is about 8077.9062262445. The cubic root of 65252569 is about 402.5926775003.

The spelling of 65252569 in words is "sixty-five million, two hundred fifty-two thousand, five hundred sixty-nine".