53691117 has 8 divisors (see below), whose sum is σ = 75799296. Its totient is φ = 33688512.

The previous prime is 53691103. The next prime is 53691139. The reversal of 53691117 is 71119635.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53691117 - 2¹⁰ = 53690093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53691217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526333 + ... + 526434.

It is an arithmetic number, because the mean of its divisors is an integer number (9474912).

Almost surely, 2^53691117 is an apocalyptic number.

It is an amenable number.

53691117 is a deficient number, since it is larger than the sum of its proper divisors (22108179).

53691117 is a wasteful number, since it uses less digits than its factorization.

53691117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052787.

The product of its digits is 5670, while the sum is 33.

The square root of 53691117 is about 7327.4222616142. The cubic root of 53691117 is about 377.2542546316.

The spelling of 53691117 in words is "fifty-three million, six hundred ninety-one thousand, one hundred seventeen".