2215450553 has 2 divisors, whose sum is σ = 2215450554. Its totient is φ = 2215450552.

The previous prime is 2215450537. The next prime is 2215450561. The reversal of 2215450553 is 3550545122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1593845929 + 621604624 = 39923^2 + 24932^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215450553 - 2⁴ = 2215450537 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2215450513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107725276 + 1107725277.

It is an arithmetic number, because the mean of its divisors is an integer number (1107725277).

Almost surely, 2^2215450553 is an apocalyptic number.

It is an amenable number.

2215450553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215450553 is an equidigital number, since it uses as much as digits as its factorization.

2215450553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 2215450553 is about 47068.5728804263. The cubic root of 2215450553 is about 1303.6290222832.

Adding to 2215450553 its reverse (3550545122), we get a palindrome (5765995675).

The spelling of 2215450553 in words is "two billion, two hundred fifteen million, four hundred fifty thousand, five hundred fifty-three".