53087117 has 4 divisors (see below), whose sum is σ = 53202240. Its totient is φ = 52971996.

The previous prime is 53087093. The next prime is 53087137. The reversal of 53087117 is 71178035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53087117 - 2⁶ = 53087053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53087137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56867 + ... + 57792.

It is an arithmetic number, because the mean of its divisors is an integer number (13300560).

Almost surely, 2^53087117 is an apocalyptic number.

It is an amenable number.

53087117 is a deficient number, since it is larger than the sum of its proper divisors (115123).

53087117 is a wasteful number, since it uses less digits than its factorization.

53087117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115122.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 53087117 is about 7286.0906527438. The cubic root of 53087117 is about 375.8342717837.

The spelling of 53087117 in words is "fifty-three million, eighty-seven thousand, one hundred seventeen".