2545405330 has 24 divisors (see below), whose sum is σ = 4961284452. Its totient is φ = 939841344.

The previous prime is 2545405327. The next prime is 2545405351. The reversal of 2545405330 is 335045452.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 505521 + 2544899809 = 711^2 + 50447^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2545405292 and 2545405301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 751389 + ... + 754768.

Almost surely, 2^2545405330 is an apocalyptic number.

2545405330 is a deficient number, since it is larger than the sum of its proper divisors (2415879122).

2545405330 is a wasteful number, since it uses less digits than its factorization.

2545405330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506190 (or 1506177 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 2545405330 is about 50452.0101680795. The cubic root of 2545405330 is about 1365.3761623908.

The spelling of 2545405330 in words is "two billion, five hundred forty-five million, four hundred five thousand, three hundred thirty".