2215155433 has 2 divisors, whose sum is σ = 2215155434. Its totient is φ = 2215155432.

The previous prime is 2215155431. The next prime is 2215155457. The reversal of 2215155433 is 3345515122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2198484544 + 16670889 = 46888^2 + 4083^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215155433 - 2¹ = 2215155431 is a prime.

Together with 2215155431, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2215155395 and 2215155404.

It is not a weakly prime, because it can be changed into another prime (2215155431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107577716 + 1107577717.

It is an arithmetic number, because the mean of its divisors is an integer number (1107577717).

Almost surely, 2^2215155433 is an apocalyptic number.

It is an amenable number.

2215155433 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215155433 is an equidigital number, since it uses as much as digits as its factorization.

2215155433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 31.

The square root of 2215155433 is about 47065.4377755057. The cubic root of 2215155433 is about 1303.5711342717.

The spelling of 2215155433 in words is "two billion, two hundred fifteen million, one hundred fifty-five thousand, four hundred thirty-three".