2215105653 has 4 divisors (see below), whose sum is σ = 2953474208. Its totient is φ = 1476737100.

The previous prime is 2215105631. The next prime is 2215105657. The reversal of 2215105653 is 3565015122.

It is a happy number.

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 not a de Polignac number, because 2215105653 - 2¹⁷ = 2214974581 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2215105653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215105657) 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, 369184273 + ... + 369184278.

It is an arithmetic number, because the mean of its divisors is an integer number (738368552).

Almost surely, 2^2215105653 is an apocalyptic number.

It is an amenable number.

2215105653 is a deficient number, since it is larger than the sum of its proper divisors (738368555).

2215105653 is an equidigital number, since it uses as much as digits as its factorization.

2215105653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738368554.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 2215105653 is about 47064.9089343643. The cubic root of 2215105653 is about 1303.5613693802.

The spelling of 2215105653 in words is "two billion, two hundred fifteen million, one hundred five thousand, six hundred fifty-three".