90512564603 has 2 divisors, whose sum is σ = 90512564604. Its totient is φ = 90512564602.

The previous prime is 90512564579. The next prime is 90512564621. The reversal of 90512564603 is 30646521509.

It is a strong prime.

It is an emirp because it is prime and its reverse (30646521509) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90512564603 - 2¹⁰ = 90512563579 is a prime.

It is not a weakly prime, because it can be changed into another prime (90512564003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45256282301 + 45256282302.

It is an arithmetic number, because the mean of its divisors is an integer number (45256282302).

Almost surely, 2^90512564603 is an apocalyptic number.

90512564603 is a deficient number, since it is larger than the sum of its proper divisors (1).

90512564603 is an equidigital number, since it uses as much as digits as its factorization.

90512564603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 90512564603 in words is "ninety billion, five hundred twelve million, five hundred sixty-four thousand, six hundred three".