52140215 has 8 divisors (see below), whose sum is σ = 64259520. Its totient is φ = 40584672.

The previous prime is 52140211. The next prime is 52140293. The reversal of 52140215 is 51204125.

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 52140215 - 2² = 52140211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52140211) 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, 140735 + ... + 141104.

It is an arithmetic number, because the mean of its divisors is an integer number (8032440).

Almost surely, 2^52140215 is an apocalyptic number.

52140215 is a deficient number, since it is larger than the sum of its proper divisors (12119305).

52140215 is a wasteful number, since it uses less digits than its factorization.

52140215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281881.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 52140215 is about 7220.8181669393. The cubic root of 52140215 is about 373.5862979620.

The spelling of 52140215 in words is "fifty-two million, one hundred forty thousand, two hundred fifteen".