2545491582 has 28 divisors (see below), whose sum is σ = 5724740520. Its totient is φ = 848496708.

The previous prime is 2545491539. The next prime is 2545491589. The reversal of 2545491582 is 2851945452.

2545491582 is a `hidden beast` number, since 2 + 54 + 549 + 1 + 58 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545491589) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 871482 + ... + 874397.

Almost surely, 2^2545491582 is an apocalyptic number.

2545491582 is an abundant number, since it is smaller than the sum of its proper divisors (3179248938).

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

2545491582 is an equidigital number, since it uses as much as digits as its factorization.

2545491582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745899 (or 1745884 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 2545491582 is about 50452.8649533404. The cubic root of 2545491582 is about 1365.3915843085.

The spelling of 2545491582 in words is "two billion, five hundred forty-five million, four hundred ninety-one thousand, five hundred eighty-two".