99455957 has 2 divisors, whose sum is σ = 99455958. Its totient is φ = 99455956.

The previous prime is 99455929. The next prime is 99455981. The reversal of 99455957 is 75955499.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98287396 + 1168561 = 9914^2 + 1081^2 .

It is a cyclic number.

It is not a de Polignac number, because 99455957 - 2⁸ = 99455701 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99455899 and 99455908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99455927) 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 as a sum of consecutive naturals, namely, 49727978 + 49727979.

It is an arithmetic number, because the mean of its divisors is an integer number (49727979).

Almost surely, 2^99455957 is an apocalyptic number.

It is an amenable number.

99455957 is a deficient number, since it is larger than the sum of its proper divisors (1).

99455957 is an equidigital number, since it uses as much as digits as its factorization.

99455957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2551500, while the sum is 53.

The square root of 99455957 is about 9972.7607511661. The cubic root of 99455957 is about 463.3156109479.

The spelling of 99455957 in words is "ninety-nine million, four hundred fifty-five thousand, nine hundred fifty-seven".