2545051645 has 8 divisors (see below), whose sum is σ = 3119042304. Its totient is φ = 1992721104.

The previous prime is 2545051643. The next prime is 2545051651. The reversal of 2545051645 is 5461505452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2545051645 - 2¹ = 2545051643 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545051643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5414769 + ... + 5415238.

It is an arithmetic number, because the mean of its divisors is an integer number (389880288).

Almost surely, 2^2545051645 is an apocalyptic number.

It is an amenable number.

2545051645 is a deficient number, since it is larger than the sum of its proper divisors (573990659).

2545051645 is a wasteful number, since it uses less digits than its factorization.

2545051645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10830059.

The product of its (nonzero) digits is 120000, while the sum is 37.

The square root of 2545051645 is about 50448.5048836930. The cubic root of 2545051645 is about 1365.3129196228.

The spelling of 2545051645 in words is "two billion, five hundred forty-five million, fifty-one thousand, six hundred forty-five".