2545321626 has 12 divisors (see below), whose sum is σ = 5514863562. Its totient is φ = 848440536.

The previous prime is 2545321609. The next prime is 2545321631. The reversal of 2545321626 is 6261235452.

2545321626 is a `hidden beast` number, since 2 + 5 + 4 + 5 + 3 + 21 + 626 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2545303401 + 18225 = 50451^2 + 135^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70703361 + ... + 70703396.

Almost surely, 2^2545321626 is an apocalyptic number.

2545321626 is an abundant number, since it is smaller than the sum of its proper divisors (2969541936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2545321626 is a wasteful number, since it uses less digits than its factorization.

2545321626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141406765 (or 141406762 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 2545321626 is about 50451.1806204771. The cubic root of 2545321626 is about 1365.3611957242.

The spelling of 2545321626 in words is "two billion, five hundred forty-five million, three hundred twenty-one thousand, six hundred twenty-six".