2520771725 has 6 divisors (see below), whose sum is σ = 3125756970. Its totient is φ = 2016617360.

The previous prime is 2520771709. The next prime is 2520771739. The reversal of 2520771725 is 5271770252.

It can be written as a sum of positive squares in 3 ways, for example, as 35450116 + 2485321609 = 5954^2 + 49853^2 .

It is not a de Polignac number, because 2520771725 - 2⁴ = 2520771709 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 5 ways as a sum of consecutive naturals, for example, 50415410 + ... + 50415459.

It is an arithmetic number, because the mean of its divisors is an integer number (520959495).

Almost surely, 2^2520771725 is an apocalyptic number.

2520771725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2520771725 is a deficient number, since it is larger than the sum of its proper divisors (604985245).

2520771725 is a wasteful number, since it uses less digits than its factorization.

2520771725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100830879 (or 100830874 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 38.

The square root of 2520771725 is about 50207.2875686389. The cubic root of 2520771725 is about 1360.9573213935.

The spelling of 2520771725 in words is "two billion, five hundred twenty million, seven hundred seventy-one thousand, seven hundred twenty-five".