2545578552 has 64 divisors (see below), whose sum is σ = 7073516160. Its totient is φ = 756828800.

The previous prime is 2545578551. The next prime is 2545578557. The reversal of 2545578552 is 2558755452.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545578551) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 76974 + ... + 104957.

It is an arithmetic number, because the mean of its divisors is an integer number (110523690).

Almost surely, 2^2545578552 is an apocalyptic number.

2545578552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2545578552 is an abundant number, since it is smaller than the sum of its proper divisors (4527937608).

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

2545578552 is a wasteful number, since it uses less digits than its factorization.

2545578552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182004 (or 182000 counting only the distinct ones).

The product of its digits is 2800000, while the sum is 48.

The square root of 2545578552 is about 50453.7268395507. The cubic root of 2545578552 is about 1365.4071342524.

Subtracting 2545578552 from its reverse (2558755452), we obtain a square (13176900 = 3630²).

The spelling of 2545578552 in words is "two billion, five hundred forty-five million, five hundred seventy-eight thousand, five hundred fifty-two".