2777530225 has 24 divisors (see below), whose sum is σ = 3507239808. Its totient is φ = 2181537600.

The previous prime is 2777530211. The next prime is 2777530241. The reversal of 2777530225 is 5220357772.

It is not a de Polignac number, because 2777530225 - 2¹⁹ = 2777005937 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 528360 + ... + 533590.

It is an arithmetic number, because the mean of its divisors is an integer number (146134992).

Almost surely, 2^2777530225 is an apocalyptic number.

2777530225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2777530225 is a deficient number, since it is larger than the sum of its proper divisors (729709583).

2777530225 is a wasteful number, since it uses less digits than its factorization.

2777530225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5625 (or 5620 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 40.

The square root of 2777530225 is about 52702.2791252902. The cubic root of 2777530225 is about 1405.6793487759.

Adding to 2777530225 its reverse (5220357772), we get a palindrome (7997887997).

The spelling of 2777530225 in words is "two billion, seven hundred seventy-seven million, five hundred thirty thousand, two hundred twenty-five".