53215105 has 8 divisors (see below), whose sum is σ = 67219200. Its totient is φ = 40331376.

The previous prime is 53215091. The next prime is 53215121. The reversal of 53215105 is 50151235.

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

It is not a de Polignac number, because 53215105 - 2⁹ = 53214593 is a prime.

It is a super-2 number, since 2×53215105² = 5663694800322050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279985 + ... + 280174.

It is an arithmetic number, because the mean of its divisors is an integer number (8402400).

Almost surely, 2^53215105 is an apocalyptic number.

It is an amenable number.

53215105 is a deficient number, since it is larger than the sum of its proper divisors (14004095).

53215105 is a wasteful number, since it uses less digits than its factorization.

53215105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560183.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 53215105 is about 7294.8684018288. The cubic root of 53215105 is about 376.1360629684.

The spelling of 53215105 in words is "fifty-three million, two hundred fifteen thousand, one hundred five".