229872553 has 2 divisors, whose sum is σ = 229872554. Its totient is φ = 229872552.

The previous prime is 229872551. The next prime is 229872569. The reversal of 229872553 is 355278922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184606569 + 45265984 = 13587^2 + 6728^2 .

It is a cyclic number.

It is not a de Polignac number, because 229872553 - 2¹ = 229872551 is a prime.

Together with 229872551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (229872551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114936276 + 114936277.

It is an arithmetic number, because the mean of its divisors is an integer number (114936277).

Almost surely, 2^229872553 is an apocalyptic number.

It is an amenable number.

229872553 is a deficient number, since it is larger than the sum of its proper divisors (1).

229872553 is an equidigital number, since it uses as much as digits as its factorization.

229872553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The square root of 229872553 is about 15161.5485027091. The cubic root of 229872553 is about 612.5793787446.

The spelling of 229872553 in words is "two hundred twenty-nine million, eight hundred seventy-two thousand, five hundred fifty-three".