53991098 has 32 divisors (see below), whose sum is σ = 97148160. Its totient is φ = 22014720.

The previous prime is 53991089. The next prime is 53991121. The reversal of 53991098 is 89019935.

It is a Curzon number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 27890 + ... + 29762.

It is an arithmetic number, because the mean of its divisors is an integer number (3035880).

Almost surely, 2^53991098 is an apocalyptic number.

53991098 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

53991098 is a deficient number, since it is larger than the sum of its proper divisors (43157062).

53991098 is a wasteful number, since it uses less digits than its factorization.

53991098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 53991098 is about 7347.8634990043. The cubic root of 53991098 is about 377.9555437952.

The spelling of 53991098 in words is "fifty-three million, nine hundred ninety-one thousand, ninety-eight".