53899717 has 2 divisors, whose sum is σ = 53899718. Its totient is φ = 53899716.

The previous prime is 53899711. The next prime is 53899723. The reversal of 53899717 is 71799835.

It is a balanced prime because it is at equal distance from previous prime (53899711) and next prime (53899723).

It can be written as a sum of positive squares in only one way, i.e., 53670276 + 229441 = 7326^2 + 479^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53899717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53899711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26949858 + 26949859.

It is an arithmetic number, because the mean of its divisors is an integer number (26949859).

Almost surely, 2^53899717 is an apocalyptic number.

It is an amenable number.

53899717 is a deficient number, since it is larger than the sum of its proper divisors (1).

53899717 is an equidigital number, since it uses as much as digits as its factorization.

53899717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 476280, while the sum is 49.

The square root of 53899717 is about 7341.6426636006. The cubic root of 53899717 is about 377.7421909737.

The spelling of 53899717 in words is "fifty-three million, eight hundred ninety-nine thousand, seven hundred seventeen".