2506743555 has 8 divisors (see below), whose sum is σ = 4010789712. Its totient is φ = 1336929888.

The previous prime is 2506743553. The next prime is 2506743571. The reversal of 2506743555 is 5553476052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2506743555 - 2¹ = 2506743553 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2506743553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83558104 + ... + 83558133.

It is an arithmetic number, because the mean of its divisors is an integer number (501348714).

Almost surely, 2^2506743555 is an apocalyptic number.

2506743555 is a deficient number, since it is larger than the sum of its proper divisors (1504046157).

2506743555 is a wasteful number, since it uses less digits than its factorization.

2506743555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167116245.

The product of its (nonzero) digits is 630000, while the sum is 42.

The square root of 2506743555 is about 50067.3901356961. The cubic root of 2506743555 is about 1358.4280343307.

The spelling of 2506743555 in words is "two billion, five hundred six million, seven hundred forty-three thousand, five hundred fifty-five".