2785422551 has 4 divisors (see below), whose sum is σ = 2796520104. Its totient is φ = 2774325000.

The previous prime is 2785422533. The next prime is 2785422581. The reversal of 2785422551 is 1552245872.

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

It is a cyclic number.

It is not a de Polignac number, because 2785422551 - 2²⁶ = 2718313687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2785422499 and 2785422508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2785422581) 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, 5548400 + ... + 5548901.

It is an arithmetic number, because the mean of its divisors is an integer number (699130026).

Almost surely, 2^2785422551 is an apocalyptic number.

2785422551 is a deficient number, since it is larger than the sum of its proper divisors (11097553).

2785422551 is a wasteful number, since it uses less digits than its factorization.

2785422551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11097552.

The product of its digits is 224000, while the sum is 41.

The square root of 2785422551 is about 52777.1025256218. The cubic root of 2785422551 is about 1407.0094979159.

It can be divided in two parts, 27854 and 22551, that added together give a palindrome (50405).

The spelling of 2785422551 in words is "two billion, seven hundred eighty-five million, four hundred twenty-two thousand, five hundred fifty-one".