220551433 has 2 divisors, whose sum is σ = 220551434. Its totient is φ = 220551432.

The previous prime is 220551431. The next prime is 220551437. The reversal of 220551433 is 334155022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205434889 + 15116544 = 14333^2 + 3888^2 .

It is a cyclic number.

It is not a de Polignac number, because 220551433 - 2¹ = 220551431 is a prime.

Together with 220551431, it forms a pair of twin primes.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 220551398 and 220551407.

It is not a weakly prime, because it can be changed into another prime (220551431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110275716 + 110275717.

It is an arithmetic number, because the mean of its divisors is an integer number (110275717).

Almost surely, 2^220551433 is an apocalyptic number.

It is an amenable number.

220551433 is a deficient number, since it is larger than the sum of its proper divisors (1).

220551433 is an equidigital number, since it uses as much as digits as its factorization.

220551433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 220551433 is about 14850.9741431328. The cubic root of 220551433 is about 604.1850311363.

The spelling of 220551433 in words is "two hundred twenty million, five hundred fifty-one thousand, four hundred thirty-three".