53617697 has 16 divisors (see below), whose sum is σ = 62500992. Its totient is φ = 45048960.

The previous prime is 53617661. The next prime is 53617703. The reversal of 53617697 is 79671635.

It is a cyclic number.

It is not a de Polignac number, because 53617697 - 2⁸ = 53617441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53617657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161822 + ... + 162152.

It is an arithmetic number, because the mean of its divisors is an integer number (3906312).

Almost surely, 2^53617697 is an apocalyptic number.

It is an amenable number.

53617697 is a deficient number, since it is larger than the sum of its proper divisors (8883295).

53617697 is a wasteful number, since it uses less digits than its factorization.

53617697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728.

The product of its digits is 238140, while the sum is 44.

The square root of 53617697 is about 7322.4106003419. The cubic root of 53617697 is about 377.0822172211.

The spelling of 53617697 in words is "fifty-three million, six hundred seventeen thousand, six hundred ninety-seven".