88525418581 has 2 divisors, whose sum is σ = 88525418582. Its totient is φ = 88525418580.

The previous prime is 88525418573. The next prime is 88525418623. The reversal of 88525418581 is 18581452588.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83660356081 + 4865062500 = 289241^2 + 69750^2 .

It is a cyclic number.

It is not a de Polignac number, because 88525418581 - 2³ = 88525418573 is a prime.

It is a super-2 number, since 2×88525418581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88525418381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44262709290 + 44262709291.

It is an arithmetic number, because the mean of its divisors is an integer number (44262709291).

Almost surely, 2^88525418581 is an apocalyptic number.

It is an amenable number.

88525418581 is a deficient number, since it is larger than the sum of its proper divisors (1).

88525418581 is an equidigital number, since it uses as much as digits as its factorization.

88525418581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4096000, while the sum is 55.

The spelling of 88525418581 in words is "eighty-eight billion, five hundred twenty-five million, four hundred eighteen thousand, five hundred eighty-one".