99540533 has 2 divisors, whose sum is σ = 99540534. Its totient is φ = 99540532.

The previous prime is 99540523. The next prime is 99540569. The reversal of 99540533 is 33504599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99540529 + 4 = 9977^2 + 2^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99540533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99540523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49770266 + 49770267.

It is an arithmetic number, because the mean of its divisors is an integer number (49770267).

Almost surely, 2^99540533 is an apocalyptic number.

It is an amenable number.

99540533 is a deficient number, since it is larger than the sum of its proper divisors (1).

99540533 is an equidigital number, since it uses as much as digits as its factorization.

99540533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 38.

The square root of 99540533 is about 9977.0002004611. Note that the first 3 decimals coincide. The cubic root of 99540533 is about 463.4469061797.

The spelling of 99540533 in words is "ninety-nine million, five hundred forty thousand, five hundred thirty-three".