99550949 has 2 divisors, whose sum is σ = 99550950. Its totient is φ = 99550948.

The previous prime is 99550943. The next prime is 99550973. The reversal of 99550949 is 94905599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95902849 + 3648100 = 9793^2 + 1910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99550949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99550897 and 99550906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99550943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49775474 + 49775475.

It is an arithmetic number, because the mean of its divisors is an integer number (49775475).

Almost surely, 2^99550949 is an apocalyptic number.

It is an amenable number.

99550949 is a deficient number, since it is larger than the sum of its proper divisors (1).

99550949 is an equidigital number, since it uses as much as digits as its factorization.

99550949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 656100, while the sum is 50.

The square root of 99550949 is about 9977.5221873970. The cubic root of 99550949 is about 463.4630707660.

The spelling of 99550949 in words is "ninety-nine million, five hundred fifty thousand, nine hundred forty-nine".