55098281 has 4 divisors (see below), whose sum is σ = 62969472. Its totient is φ = 47227092.

The previous prime is 55098269. The next prime is 55098287. The reversal of 55098281 is 18289055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55098281 - 2¹⁰ = 55097257 is a prime.

It is a super-2 number, since 2×55098281² = 6071641138309922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55098287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3935585 + ... + 3935598.

It is an arithmetic number, because the mean of its divisors is an integer number (15742368).

Almost surely, 2^55098281 is an apocalyptic number.

It is an amenable number.

55098281 is a deficient number, since it is larger than the sum of its proper divisors (7871191).

55098281 is an equidigital number, since it uses as much as digits as its factorization.

55098281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7871190.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 55098281 is about 7422.8216333144. The cubic root of 55098281 is about 380.5216312673.

The spelling of 55098281 in words is "fifty-five million, ninety-eight thousand, two hundred eighty-one".