2558242755 has 48 divisors (see below), whose sum is σ = 4479860736. Its totient is φ = 1350446400.

The previous prime is 2558242747. The next prime is 2558242763. The reversal of 2558242755 is 5572428552.

2558242755 is a `hidden beast` number, since 2 + 558 + 2 + 42 + 7 + 55 = 666.

It is an interprime number because it is at equal distance from previous prime (2558242747) and next prime (2558242763).

It is not a de Polignac number, because 2558242755 - 2³ = 2558242747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2558242755.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2601994 + ... + 2602976.

It is an arithmetic number, because the mean of its divisors is an integer number (93330432).

Almost surely, 2^2558242755 is an apocalyptic number.

2558242755 is a deficient number, since it is larger than the sum of its proper divisors (1921617981).

2558242755 is a wasteful number, since it uses less digits than its factorization.

2558242755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528 (or 1525 counting only the distinct ones).

The product of its digits is 1120000, while the sum is 45.

The square root of 2558242755 is about 50579.0742797849. The cubic root of 2558242755 is about 1367.6676808333.

The spelling of 2558242755 in words is "two billion, five hundred fifty-eight million, two hundred forty-two thousand, seven hundred fifty-five".