53949017 has 2 divisors, whose sum is σ = 53949018. Its totient is φ = 53949016.

The previous prime is 53949013. The next prime is 53949067. The reversal of 53949017 is 71094935.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43811161 + 10137856 = 6619^2 + 3184^2 .

It is a cyclic number.

It is not a de Polignac number, because 53949017 - 2² = 53949013 is a prime.

It is not a weakly prime, because it can be changed into another prime (53949013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26974508 + 26974509.

It is an arithmetic number, because the mean of its divisors is an integer number (26974509).

Almost surely, 2^53949017 is an apocalyptic number.

It is an amenable number.

53949017 is a deficient number, since it is larger than the sum of its proper divisors (1).

53949017 is an equidigital number, since it uses as much as digits as its factorization.

53949017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 53949017 is about 7344.9994554118. Note that the first 3 decimals coincide. The cubic root of 53949017 is about 377.8573246337.

The spelling of 53949017 in words is "fifty-three million, nine hundred forty-nine thousand, seventeen".