55576481 has 2 divisors, whose sum is σ = 55576482. Its totient is φ = 55576480.

The previous prime is 55576471. The next prime is 55576483. The reversal of 55576481 is 18467555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30426256 + 25150225 = 5516^2 + 5015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55576481 is a prime.

It is a super-2 number, since 2×55576481² = 6177490480686722, which contains 22 as substring.

Together with 55576483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55576483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27788240 + 27788241.

It is an arithmetic number, because the mean of its divisors is an integer number (27788241).

Almost surely, 2^55576481 is an apocalyptic number.

It is an amenable number.

55576481 is a deficient number, since it is larger than the sum of its proper divisors (1).

55576481 is an equidigital number, since it uses as much as digits as its factorization.

55576481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 41.

The square root of 55576481 is about 7454.9635143306. The cubic root of 55576481 is about 381.6193154794.

The spelling of 55576481 in words is "fifty-five million, five hundred seventy-six thousand, four hundred eighty-one".