53102217 has 16 divisors (see below), whose sum is σ = 81119232. Its totient is φ = 30268560.

The previous prime is 53102209. The next prime is 53102221. The reversal of 53102217 is 71220135.

It is not a de Polignac number, because 53102217 - 2³ = 53102209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 53102193 and 53102202.

It is not an unprimeable number, because it can be changed into a prime (53102297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6118 + ... + 11984.

It is an arithmetic number, because the mean of its divisors is an integer number (5069952).

Almost surely, 2^53102217 is an apocalyptic number.

It is an amenable number.

53102217 is a deficient number, since it is larger than the sum of its proper divisors (28017015).

53102217 is a wasteful number, since it uses less digits than its factorization.

53102217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6308.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 53102217 is about 7287.1268000495. The cubic root of 53102217 is about 375.8699022708.

The spelling of 53102217 in words is "fifty-three million, one hundred two thousand, two hundred seventeen".