55125233 has 2 divisors, whose sum is σ = 55125234. Its totient is φ = 55125232.

The previous prime is 55125229. The next prime is 55125241. The reversal of 55125233 is 33252155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54937744 + 187489 = 7412^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 55125233 - 2² = 55125229 is a prime.

It is not a weakly prime, because it can be changed into another prime (55125253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27562616 + 27562617.

It is an arithmetic number, because the mean of its divisors is an integer number (27562617).

Almost surely, 2^55125233 is an apocalyptic number.

It is an amenable number.

55125233 is a deficient number, since it is larger than the sum of its proper divisors (1).

55125233 is an equidigital number, since it uses as much as digits as its factorization.

55125233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4500, while the sum is 26.

The square root of 55125233 is about 7424.6368934784. The cubic root of 55125233 is about 380.5836667611.

Adding to 55125233 its reverse (33252155), we get a palindrome (88377388).

The spelling of 55125233 in words is "fifty-five million, one hundred twenty-five thousand, two hundred thirty-three".