2545620046 has 4 divisors (see below), whose sum is σ = 3818430072. Its totient is φ = 1272810022.

The previous prime is 2545620031. The next prime is 2545620071. The reversal of 2545620046 is 6400265452.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2545619993 and 2545620020.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 636405010 + ... + 636405013.

It is an arithmetic number, because the mean of its divisors is an integer number (954607518).

Almost surely, 2^2545620046 is an apocalyptic number.

2545620046 is a deficient number, since it is larger than the sum of its proper divisors (1272810026).

2545620046 is a wasteful number, since it uses less digits than its factorization.

2545620046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272810025.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 2545620046 is about 50454.1380463486. The cubic root of 2545620046 is about 1365.4145531154.

Adding to 2545620046 its reverse (6400265452), we get a palindrome (8945885498).

The spelling of 2545620046 in words is "two billion, five hundred forty-five million, six hundred twenty thousand, forty-six".