89178162553 has 2 divisors, whose sum is σ = 89178162554. Its totient is φ = 89178162552.

The previous prime is 89178162431. The next prime is 89178162571. The reversal of 89178162553 is 35526187198.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89088519529 + 89643024 = 298477^2 + 9468^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89178162553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89178162494 and 89178162503.

It is not a weakly prime, because it can be changed into another prime (89178162583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44589081276 + 44589081277.

It is an arithmetic number, because the mean of its divisors is an integer number (44589081277).

Almost surely, 2^89178162553 is an apocalyptic number.

It is an amenable number.

89178162553 is a deficient number, since it is larger than the sum of its proper divisors (1).

89178162553 is an equidigital number, since it uses as much as digits as its factorization.

89178162553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 55.

The spelling of 89178162553 in words is "eighty-nine billion, one hundred seventy-eight million, one hundred sixty-two thousand, five hundred fifty-three".