53695657 has 2 divisors, whose sum is σ = 53695658. Its totient is φ = 53695656.

The previous prime is 53695637. The next prime is 53695687. The reversal of 53695657 is 75659635.

53695657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33454656 + 20241001 = 5784^2 + 4499^2 .

It is a cyclic number.

It is not a de Polignac number, because 53695657 - 2⁷ = 53695529 is a prime.

It is not a weakly prime, because it can be changed into another prime (53695637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26847828 + 26847829.

It is an arithmetic number, because the mean of its divisors is an integer number (26847829).

Almost surely, 2^53695657 is an apocalyptic number.

It is an amenable number.

53695657 is a deficient number, since it is larger than the sum of its proper divisors (1).

53695657 is an equidigital number, since it uses as much as digits as its factorization.

53695657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 850500, while the sum is 46.

The square root of 53695657 is about 7327.7320502322. The cubic root of 53695657 is about 377.2648875888.

It can be divided in two parts, 5369 and 5657, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 53695657 in words is "fifty-three million, six hundred ninety-five thousand, six hundred fifty-seven".