55425011 has 2 divisors, whose sum is σ = 55425012. Its totient is φ = 55425010.

The previous prime is 55424987. The next prime is 55425077. The reversal of 55425011 is 11052455.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55425011 - 2¹⁰ = 55423987 is a prime.

It is not a weakly prime, because it can be changed into another prime (55425211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27712505 + 27712506.

It is an arithmetic number, because the mean of its divisors is an integer number (27712506).

Almost surely, 2^55425011 is an apocalyptic number.

55425011 is a deficient number, since it is larger than the sum of its proper divisors (1).

55425011 is an equidigital number, since it uses as much as digits as its factorization.

55425011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 55425011 is about 7444.7975795182. The cubic root of 55425011 is about 381.2723073573.

Adding to 55425011 its reverse (11052455), we get a palindrome (66477466).

The spelling of 55425011 in words is "fifty-five million, four hundred twenty-five thousand, eleven".