2525766049 has 9 divisors (see below), whose sum is σ = 2617375033. Its totient is φ = 2437263472.

The previous prime is 2525766043. The next prime is 2525766077. The reversal of 2525766049 is 9406675252.

The square root of 2525766049 is 50257.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2512225 + 2523253824 = 1585^2 + 50232^2 .

It is not a de Polignac number, because 2525766049 - 2²¹ = 2523668897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2525766043) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1456587 + ... + 1458319.

Almost surely, 2^2525766049 is an apocalyptic number.

2525766049 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2525766049 is the 50257-th square number.

2525766049 is the 25129-th centered octagonal number.

It is an amenable number.

2525766049 is a deficient number, since it is larger than the sum of its proper divisors (91608984).

2525766049 is an frugal number, since it uses more digits than its factorization.

2525766049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3524 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The cubic root of 2525766049 is about 1361.8555354533.

The spelling of 2525766049 in words is "two billion, five hundred twenty-five million, seven hundred sixty-six thousand, forty-nine".