55257611 has 2 divisors, whose sum is σ = 55257612. Its totient is φ = 55257610.

The previous prime is 55257589. The next prime is 55257677. The reversal of 55257611 is 11675255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55257611 - 2²² = 51063307 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55257691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27628805 + 27628806.

It is an arithmetic number, because the mean of its divisors is an integer number (27628806).

Almost surely, 2^55257611 is an apocalyptic number.

55257611 is a deficient number, since it is larger than the sum of its proper divisors (1).

55257611 is an equidigital number, since it uses as much as digits as its factorization.

55257611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10500, while the sum is 32.

The square root of 55257611 is about 7433.5463272922. The cubic root of 55257611 is about 380.8880683772. Note that the first 3 decimals are identical.

The spelling of 55257611 in words is "fifty-five million, two hundred fifty-seven thousand, six hundred eleven".