88506221 has 2 divisors, whose sum is σ = 88506222. Its totient is φ = 88506220.

The previous prime is 88506211. The next prime is 88506251. The reversal of 88506221 is 12260588.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86750596 + 1755625 = 9314^2 + 1325^2 .

It is a cyclic number.

It is not a de Polignac number, because 88506221 - 2²² = 84311917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88506211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44253110 + 44253111.

It is an arithmetic number, because the mean of its divisors is an integer number (44253111).

Almost surely, 2^88506221 is an apocalyptic number.

It is an amenable number.

88506221 is a deficient number, since it is larger than the sum of its proper divisors (1).

88506221 is an equidigital number, since it uses as much as digits as its factorization.

88506221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 88506221 is about 9407.7744977226. The cubic root of 88506221 is about 445.6472859348.

The spelling of 88506221 in words is "eighty-eight million, five hundred six thousand, two hundred twenty-one".