53695217 has 2 divisors, whose sum is σ = 53695218. Its totient is φ = 53695216.

The previous prime is 53695141. The next prime is 53695249. The reversal of 53695217 is 71259635.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46730896 + 6964321 = 6836^2 + 2639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53695217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53695277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26847608 + 26847609.

It is an arithmetic number, because the mean of its divisors is an integer number (26847609).

Almost surely, 2^53695217 is an apocalyptic number.

It is an amenable number.

53695217 is a deficient number, since it is larger than the sum of its proper divisors (1).

53695217 is an equidigital number, since it uses as much as digits as its factorization.

53695217 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 53695217 is about 7327.7020272388. The cubic root of 53695217 is about 377.2638571081.

The spelling of 53695217 in words is "fifty-three million, six hundred ninety-five thousand, two hundred seventeen".