88102561 has 2 divisors, whose sum is σ = 88102562. Its totient is φ = 88102560.

The previous prime is 88102529. The next prime is 88102577. The reversal of 88102561 is 16520188.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88078225 + 24336 = 9385^2 + 156^2 .

It is a cyclic number.

It is not a de Polignac number, because 88102561 - 2⁵ = 88102529 is a prime.

It is a super-2 number, since 2×88102561² = 15524122509517442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88102501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44051280 + 44051281.

It is an arithmetic number, because the mean of its divisors is an integer number (44051281).

Almost surely, 2^88102561 is an apocalyptic number.

It is an amenable number.

88102561 is a deficient number, since it is larger than the sum of its proper divisors (1).

88102561 is an equidigital number, since it uses as much as digits as its factorization.

88102561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 88102561 is about 9386.2964474813. The cubic root of 88102561 is about 444.9687492257.

The spelling of 88102561 in words is "eighty-eight million, one hundred two thousand, five hundred sixty-one".