61752569 has 2 divisors, whose sum is σ = 61752570. Its totient is φ = 61752568.

The previous prime is 61752563. The next prime is 61752577. The reversal of 61752569 is 96525716.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60264169 + 1488400 = 7763^2 + 1220^2 .

It is a cyclic number.

It is not a de Polignac number, because 61752569 - 2⁴ = 61752553 is a prime.

It is a super-2 number, since 2×61752569² = 7626759556199522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61752563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30876284 + 30876285.

It is an arithmetic number, because the mean of its divisors is an integer number (30876285).

Almost surely, 2^61752569 is an apocalyptic number.

It is an amenable number.

61752569 is a deficient number, since it is larger than the sum of its proper divisors (1).

61752569 is an equidigital number, since it uses as much as digits as its factorization.

61752569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 41.

The square root of 61752569 is about 7858.2802826064. The cubic root of 61752569 is about 395.2619509040.

The spelling of 61752569 in words is "sixty-one million, seven hundred fifty-two thousand, five hundred sixty-nine".