54999899 has 2 divisors, whose sum is σ = 54999900. Its totient is φ = 54999898.

The previous prime is 54999887. The next prime is 54999907. The reversal of 54999899 is 99899945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54999899 - 2⁸ = 54999643 is a prime.

It is not a weakly prime, because it can be changed into another prime (54999829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27499949 + 27499950.

It is an arithmetic number, because the mean of its divisors is an integer number (27499950).

Almost surely, 2^54999899 is an apocalyptic number.

54999899 is a deficient number, since it is larger than the sum of its proper divisors (1).

54999899 is an equidigital number, since it uses as much as digits as its factorization.

54999899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9447840, while the sum is 62.

The square root of 54999899 is about 7416.1916776739. The cubic root of 54999899 is about 380.2950132892.

The spelling of 54999899 in words is "fifty-four million, nine hundred ninety-nine thousand, eight hundred ninety-nine".