55255742258 has 16 divisors (see below), whose sum is σ = 83038628736. Its totient is φ = 27576233520.

The previous prime is 55255742249. The next prime is 55255742281. The reversal of 55255742258 is 85224755255.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4122728 + ... + 4136108.

It is an arithmetic number, because the mean of its divisors is an integer number (5189914296).

Almost surely, 2^55255742258 is an apocalyptic number.

55255742258 is a deficient number, since it is larger than the sum of its proper divisors (27782886478).

55255742258 is a wasteful number, since it uses less digits than its factorization.

55255742258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17089.

The product of its digits is 5600000, while the sum is 50.

The spelling of 55255742258 in words is "fifty-five billion, two hundred fifty-five million, seven hundred forty-two thousand, two hundred fifty-eight".