2215251373 has 2 divisors, whose sum is σ = 2215251374. Its totient is φ = 2215251372.

The previous prime is 2215251349. The next prime is 2215251397. The reversal of 2215251373 is 3731525122.

It is a balanced prime because it is at equal distance from previous prime (2215251349) and next prime (2215251397).

It can be written as a sum of positive squares in only one way, i.e., 1241998564 + 973252809 = 35242^2 + 31197^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215251373 - 2⁵ = 2215251341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215251473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107625686 + 1107625687.

It is an arithmetic number, because the mean of its divisors is an integer number (1107625687).

Almost surely, 2^2215251373 is an apocalyptic number.

It is an amenable number.

2215251373 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215251373 is an equidigital number, since it uses as much as digits as its factorization.

2215251373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 31.

The square root of 2215251373 is about 47066.4569837161. The cubic root of 2215251373 is about 1303.5899535393.

Adding to 2215251373 its reverse (3731525122), we get a palindrome (5946776495).

The spelling of 2215251373 in words is "two billion, two hundred fifteen million, two hundred fifty-one thousand, three hundred seventy-three".