55240711 has 2 divisors, whose sum is σ = 55240712. Its totient is φ = 55240710.

The previous prime is 55240699. The next prime is 55240727. The reversal of 55240711 is 11704255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55240711 - 2²³ = 46852103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55240781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27620355 + 27620356.

It is an arithmetic number, because the mean of its divisors is an integer number (27620356).

Almost surely, 2^55240711 is an apocalyptic number.

55240711 is a deficient number, since it is larger than the sum of its proper divisors (1).

55240711 is an equidigital number, since it uses as much as digits as its factorization.

55240711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 55240711 is about 7432.4095016354. The cubic root of 55240711 is about 380.8492341208.

Adding to 55240711 its reverse (11704255), we get a palindrome (66944966).

The spelling of 55240711 in words is "fifty-five million, two hundred forty thousand, seven hundred eleven".