53694569 has 2 divisors, whose sum is σ = 53694570. Its totient is φ = 53694568.

The previous prime is 53694541. The next prime is 53694577. The reversal of 53694569 is 96549635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51768025 + 1926544 = 7195^2 + 1388^2 .

It is a cyclic number.

It is not a de Polignac number, because 53694569 - 2¹² = 53690473 is a prime.

It is a super-2 number, since 2×53694569² = 5766213480191522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53694169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26847284 + 26847285.

It is an arithmetic number, because the mean of its divisors is an integer number (26847285).

Almost surely, 2^53694569 is an apocalyptic number.

It is an amenable number.

53694569 is a deficient number, since it is larger than the sum of its proper divisors (1).

53694569 is an equidigital number, since it uses as much as digits as its factorization.

53694569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 47.

The square root of 53694569 is about 7327.6578113337. The cubic root of 53694569 is about 377.2623394809.

The spelling of 53694569 in words is "fifty-three million, six hundred ninety-four thousand, five hundred sixty-nine".