52720117 has 8 divisors (see below), whose sum is σ = 57908160. Its totient is φ = 47773440.

The previous prime is 52720067. The next prime is 52720121. The reversal of 52720117 is 71102725.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52720117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52720091 and 52720100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52720147) 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, 59884 + ... + 60757.

It is an arithmetic number, because the mean of its divisors is an integer number (7238520).

Almost surely, 2^52720117 is an apocalyptic number.

It is an amenable number.

52720117 is a deficient number, since it is larger than the sum of its proper divisors (5188043).

52720117 is a wasteful number, since it uses less digits than its factorization.

52720117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120683.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 52720117 is about 7260.8620011676. The cubic root of 52720117 is about 374.9662002129.

The spelling of 52720117 in words is "fifty-two million, seven hundred twenty thousand, one hundred seventeen".