88225681 has 2 divisors, whose sum is σ = 88225682. Its totient is φ = 88225680.

The previous prime is 88225651. The next prime is 88225691. The reversal of 88225681 is 18652288.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88078225 + 147456 = 9385^2 + 384^2 .

It is a cyclic number.

It is not a de Polignac number, because 88225681 - 2⁹ = 88225169 is a prime.

It is a super-2 number, since 2×88225681² = 15567541575827522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88225651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44112840 + 44112841.

It is an arithmetic number, because the mean of its divisors is an integer number (44112841).

Almost surely, 2^88225681 is an apocalyptic number.

It is an amenable number.

88225681 is a deficient number, since it is larger than the sum of its proper divisors (1).

88225681 is an equidigital number, since it uses as much as digits as its factorization.

88225681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61440, while the sum is 40.

The square root of 88225681 is about 9392.8526550777. The cubic root of 88225681 is about 445.1759284185.

The spelling of 88225681 in words is "eighty-eight million, two hundred twenty-five thousand, six hundred eighty-one".