89223993557 has 4 divisors (see below), whose sum is σ = 92300683020. Its totient is φ = 86147304096.

The previous prime is 89223993539. The next prime is 89223993569. The reversal of 89223993557 is 75539932298.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69801111601 + 19422881956 = 264199^2 + 139366^2 .

It is a cyclic number.

It is not a de Polignac number, because 89223993557 - 2⁸ = 89223993301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89223993557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89223993517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538344688 + ... + 1538344745.

It is an arithmetic number, because the mean of its divisors is an integer number (23075170755).

Almost surely, 2^89223993557 is an apocalyptic number.

It is an amenable number.

89223993557 is a deficient number, since it is larger than the sum of its proper divisors (3076689463).

89223993557 is a wasteful number, since it uses less digits than its factorization.

89223993557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3076689462.

The product of its digits is 36741600, while the sum is 62.

The spelling of 89223993557 in words is "eighty-nine billion, two hundred twenty-three million, nine hundred ninety-three thousand, five hundred fifty-seven".