55000481 has 8 divisors (see below), whose sum is σ = 56605824. Its totient is φ = 53413360.

The previous prime is 55000471. The next prime is 55000499. The reversal of 55000481 is 18400055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55000481 is a prime.

It is a super-2 number, since 2×55000481² = 6050105820462722, which contains 22 as substring.

It is a Duffinian number.

55000481 is a modest number, since divided by 481 gives 55 as remainder.

It is not an unprimeable number, because it can be changed into a prime (55000471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1691 + ... + 10623.

It is an arithmetic number, because the mean of its divisors is an integer number (7075728).

Almost surely, 2^55000481 is an apocalyptic number.

It is an amenable number.

55000481 is a deficient number, since it is larger than the sum of its proper divisors (1605343).

55000481 is a wasteful number, since it uses less digits than its factorization.

55000481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 55000481 is about 7416.2309160381. The cubic root of 55000481 is about 380.2963546912.

The spelling of 55000481 in words is "fifty-five million, four hundred eighty-one", and thus it is an aban number.