2543690061025 has 9 divisors (see below), whose sum is σ = 3154185564051. Its totient is φ = 2034945669240.

The previous prime is 2543690061019. The next prime is 2543690061043. The reversal of 2543690061025 is 5201600963452.

The square root of 2543690061025 is 1594895.

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

2543690061025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 915728421969 + 1627961639056 = 956937^2 + 1275916^2 .

It is not a de Polignac number, because 2543690061025 - 2¹⁹ = 2543689536737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7814986 + ... + 8133964.

Almost surely, 2^{2543690061025} is an apocalyptic number.

2543690061025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2543690061025 is the 1594895-th square number.

2543690061025 is the 797448-th centered octagonal number.

It is an amenable number.

2543690061025 is a deficient number, since it is larger than the sum of its proper divisors (610495503026).

2543690061025 is an frugal number, since it uses more digits than its factorization.

2543690061025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637968 (or 318984 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 2543690061025 in words is "two trillion, five hundred forty-three billion, six hundred ninety million, sixty-one thousand, twenty-five".