5555055005257 has 4 divisors (see below), whose sum is σ = 5555073685140. Its totient is φ = 5555036325376.

The previous prime is 5555055005209. The next prime is 5555055005267. The reversal of 5555055005257 is 7525005505555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3597683323536 + 1957371681721 = 1896756^2 + 1399061^2 .

It is a cyclic number.

It is not a de Polignac number, because 5555055005257 - 2¹¹ = 5555055003209 is a prime.

It is a super-2 number, since 2×5555055005257² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5555055005257.

It is not an unprimeable number, because it can be changed into a prime (5555055005267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8886532 + ... + 9491077.

It is an arithmetic number, because the mean of its divisors is an integer number (1388768421285).

Almost surely, 2^{5555055005257} is an apocalyptic number.

It is an amenable number.

5555055005257 is a deficient number, since it is larger than the sum of its proper divisors (18679883).

5555055005257 is a wasteful number, since it uses less digits than its factorization.

5555055005257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18679882.

The product of its (nonzero) digits is 5468750, while the sum is 49.

The spelling of 5555055005257 in words is "five trillion, five hundred fifty-five billion, fifty-five million, five thousand, two hundred fifty-seven".