99955601 has 2 divisors, whose sum is σ = 99955602. Its totient is φ = 99955600.

The previous prime is 99955589. The next prime is 99955613. The reversal of 99955601 is 10655999.

It is a balanced prime because it is at equal distance from previous prime (99955589) and next prime (99955613).

It can be written as a sum of positive squares in only one way, i.e., 97318225 + 2637376 = 9865^2 + 1624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99955601 is a prime.

It is a super-2 number, since 2×99955601² = 19982244342542402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99955651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49977800 + 49977801.

It is an arithmetic number, because the mean of its divisors is an integer number (49977801).

Almost surely, 2^99955601 is an apocalyptic number.

It is an amenable number.

99955601 is a deficient number, since it is larger than the sum of its proper divisors (1).

99955601 is an equidigital number, since it uses as much as digits as its factorization.

99955601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 109350, while the sum is 44.

The square root of 99955601 is about 9997.7798035364. The cubic root of 99955601 is about 464.0901792248.

The spelling of 99955601 in words is "ninety-nine million, nine hundred fifty-five thousand, six hundred one".