2551255533 has 12 divisors (see below), whose sum is σ = 3879102240. Its totient is φ = 1611319176.

The previous prime is 2551255529. The next prime is 2551255537. The reversal of 2551255533 is 3355521552.

2551255533 is a `hidden beast` number, since 2 + 551 + 2 + 55 + 53 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (2551255529) and next prime (2551255537).

It is not a de Polignac number, because 2551255533 - 2² = 2551255529 is a prime.

It is a super-2 number, since 2×2551255533² = 13017809589326228178, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551255537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7459641 + ... + 7459982.

It is an arithmetic number, because the mean of its divisors is an integer number (323258520).

Almost surely, 2^2551255533 is an apocalyptic number.

It is an amenable number.

2551255533 is a deficient number, since it is larger than the sum of its proper divisors (1327846707).

2551255533 is a wasteful number, since it uses less digits than its factorization.

2551255533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14919648 (or 14919645 counting only the distinct ones).

The product of its digits is 112500, while the sum is 36.

The square root of 2551255533 is about 50509.9547911102. The cubic root of 2551255533 is about 1366.4213942220.

The spelling of 2551255533 in words is "two billion, five hundred fifty-one million, two hundred fifty-five thousand, five hundred thirty-three".