88549561 has 2 divisors, whose sum is σ = 88549562. Its totient is φ = 88549560.

The previous prime is 88549541. The next prime is 88549649. The reversal of 88549561 is 16594588.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85377600 + 3171961 = 9240^2 + 1781^2 .

It is a cyclic number.

It is not a de Polignac number, because 88549561 - 2¹¹ = 88547513 is a prime.

It is not a weakly prime, because it can be changed into another prime (88549541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44274780 + 44274781.

It is an arithmetic number, because the mean of its divisors is an integer number (44274781).

Almost surely, 2^88549561 is an apocalyptic number.

It is an amenable number.

88549561 is a deficient number, since it is larger than the sum of its proper divisors (1).

88549561 is an equidigital number, since it uses as much as digits as its factorization.

88549561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 46.

The square root of 88549561 is about 9410.0776298604. The cubic root of 88549561 is about 445.7200160449.

The spelling of 88549561 in words is "eighty-eight million, five hundred forty-nine thousand, five hundred sixty-one".