99938553 has 48 divisors (see below), whose sum is σ = 162716736. Its totient is φ = 53786880.

The previous prime is 99938551. The next prime is 99938569. The reversal of 99938553 is 35583999.

It is not a de Polignac number, because 99938553 - 2¹ = 99938551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99938496 and 99938505.

It is not an unprimeable number, because it can be changed into a prime (99938551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 360651 + ... + 360927.

It is an arithmetic number, because the mean of its divisors is an integer number (3389932).

Almost surely, 2^99938553 is an apocalyptic number.

It is an amenable number.

99938553 is a deficient number, since it is larger than the sum of its proper divisors (62778183).

99938553 is a wasteful number, since it uses less digits than its factorization.

99938553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 333 counting only the distinct ones).

The product of its digits is 1312200, while the sum is 51.

The square root of 99938553 is about 9996.9271778882. The cubic root of 99938553 is about 464.0637933123.

The spelling of 99938553 in words is "ninety-nine million, nine hundred thirty-eight thousand, five hundred fifty-three".