99955501 has 8 divisors (see below), whose sum is σ = 103366400. Its totient is φ = 96556320.

The previous prime is 99955483. The next prime is 99955519. The reversal of 99955501 is 10555999.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99955483) and next prime (99955519).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99955501 - 2⁹ = 99954989 is a prime.

It is a super-2 number, since 2×99955501² = 19982204360322002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99955571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16585 + ... + 21793.

It is an arithmetic number, because the mean of its divisors is an integer number (12920800).

Almost surely, 2^99955501 is an apocalyptic number.

It is an amenable number.

99955501 is a deficient number, since it is larger than the sum of its proper divisors (3410899).

99955501 is a wasteful number, since it uses less digits than its factorization.

99955501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5859.

The product of its (nonzero) digits is 91125, while the sum is 43.

The square root of 99955501 is about 9997.7748024248. The cubic root of 99955501 is about 464.0900244593.

The spelling of 99955501 in words is "ninety-nine million, nine hundred fifty-five thousand, five hundred one".