55232011 has 2 divisors, whose sum is σ = 55232012. Its totient is φ = 55232010.

The previous prime is 55231973. The next prime is 55232017. The reversal of 55232011 is 11023255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55232011 - 2²¹ = 53134859 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55232011.

It is not a weakly prime, because it can be changed into another prime (55232017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27616005 + 27616006.

It is an arithmetic number, because the mean of its divisors is an integer number (27616006).

Almost surely, 2^55232011 is an apocalyptic number.

55232011 is a deficient number, since it is larger than the sum of its proper divisors (1).

55232011 is an equidigital number, since it uses as much as digits as its factorization.

55232011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 55232011 is about 7431.8242040565. The cubic root of 55232011 is about 380.8292394331.

Adding to 55232011 its reverse (11023255), we get a palindrome (66255266).

The spelling of 55232011 in words is "fifty-five million, two hundred thirty-two thousand, eleven".