53140217 has 8 divisors (see below), whose sum is σ = 58559424. Its totient is φ = 47911248.

The previous prime is 53140193. The next prime is 53140253. The reversal of 53140217 is 71204135.

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

It is a cyclic number.

It is not a de Polignac number, because 53140217 - 2¹⁸ = 52878073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53140192 and 53140201.

It is not an unprimeable number, because it can be changed into a prime (53140517) 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, 46973 + ... + 48090.

It is an arithmetic number, because the mean of its divisors is an integer number (7319928).

Almost surely, 2^53140217 is an apocalyptic number.

It is an amenable number.

53140217 is a deficient number, since it is larger than the sum of its proper divisors (5419207).

53140217 is a wasteful number, since it uses less digits than its factorization.

53140217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95119.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 53140217 is about 7289.7336714039. The cubic root of 53140217 is about 375.9595385199.

The spelling of 53140217 in words is "fifty-three million, one hundred forty thousand, two hundred seventeen".