2554782787 has 8 divisors (see below), whose sum is σ = 2569605632. Its totient is φ = 2540003400.

The previous prime is 2554782781. The next prime is 2554782821. The reversal of 2554782787 is 7872874552.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2554782787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2554782781) 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 7 ways as a sum of consecutive naturals, for example, 110962 + ... + 131992.

It is an arithmetic number, because the mean of its divisors is an integer number (321200704).

Almost surely, 2^2554782787 is an apocalyptic number.

2554782787 is a deficient number, since it is larger than the sum of its proper divisors (14822845).

2554782787 is a wasteful number, since it uses less digits than its factorization.

2554782787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21729.

The product of its digits is 8780800, while the sum is 55.

The square root of 2554782787 is about 50544.8591550120. The cubic root of 2554782787 is about 1367.0508223336.

The spelling of 2554782787 in words is "two billion, five hundred fifty-four million, seven hundred eighty-two thousand, seven hundred eighty-seven".