55075481 has 4 divisors (see below), whose sum is σ = 55851264. Its totient is φ = 54299700.

The previous prime is 55075469. The next prime is 55075483. The reversal of 55075481 is 18457055.

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 55075481 - 2⁶ = 55075417 is a prime.

It is a super-2 number, since 2×55075481² = 6066617214762722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55075483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387785 + ... + 387926.

It is an arithmetic number, because the mean of its divisors is an integer number (13962816).

Almost surely, 2^55075481 is an apocalyptic number.

It is an amenable number.

55075481 is a deficient number, since it is larger than the sum of its proper divisors (775783).

55075481 is an equidigital number, since it uses as much as digits as its factorization.

55075481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775782.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 55075481 is about 7421.2856702865. The cubic root of 55075481 is about 380.4691366460.

The spelling of 55075481 in words is "fifty-five million, seventy-five thousand, four hundred eighty-one".