90389799096025 has 81 divisors (see below), whose sum is σ = 133414927443063. Its totient is φ = 60676700198400.

The previous prime is 90389799096017. The next prime is 90389799096061. The reversal of 90389799096025 is 52069099798309.

The square root of 90389799096025 is 9507355.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 71764567131609 + 18625231964416 = 8471397^2 + 4315696^2 .

It is not a de Polignac number, because 90389799096025 - 2³ = 90389799096017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 6797752177 + ... + 6797765473.

Almost surely, 2^{90389799096025} is an apocalyptic number.

90389799096025 is the 9507355-th square number.

90389799096025 is the 4753678-th centered octagonal number.

It is an amenable number.

90389799096025 is a deficient number, since it is larger than the sum of its proper divisors (43025128347038).

90389799096025 is an equidigital number, since it uses as much as digits as its factorization.

90389799096025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26652 (or 13326 counting only the distinct ones).

The product of its (nonzero) digits is 595213920, while the sum is 76.

The spelling of 90389799096025 in words is "ninety trillion, three hundred eighty-nine billion, seven hundred ninety-nine million, ninety-six thousand, twenty-five".