2780780325 has 24 divisors (see below), whose sum is σ = 4721819808. Its totient is φ = 1442998080.

The previous prime is 2780780273. The next prime is 2780780363. The reversal of 2780780325 is 5230870872.

It is not a de Polignac number, because 2780780325 - 2²⁵ = 2747225893 is a prime.

It is a congruent 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, 498267 + ... + 503816.

It is an arithmetic number, because the mean of its divisors is an integer number (196742492).

Almost surely, 2^2780780325 is an apocalyptic number.

2780780325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2780780325 is a deficient number, since it is larger than the sum of its proper divisors (1941039483).

2780780325 is a wasteful number, since it uses less digits than its factorization.

2780780325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002133 (or 1002128 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 2780780325 is about 52733.1046402542. The cubic root of 2780780325 is about 1406.2274157361.

The spelling of 2780780325 in words is "two billion, seven hundred eighty million, seven hundred eighty thousand, three hundred twenty-five".