2543125045 has 8 divisors (see below), whose sum is σ = 3052875096. Its totient is φ = 2033750016.

The previous prime is 2543125031. The next prime is 2543125087. The reversal of 2543125045 is 5405213452.

It can be written as a sum of positive squares in 4 ways, for example, as 201242596 + 2341882449 = 14186^2 + 48393^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2543125045 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2543124998 and 2543125016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78612 + ... + 106141.

It is an arithmetic number, because the mean of its divisors is an integer number (381609387).

Almost surely, 2^2543125045 is an apocalyptic number.

It is an amenable number.

2543125045 is a deficient number, since it is larger than the sum of its proper divisors (509750051).

2543125045 is a wasteful number, since it uses less digits than its factorization.

2543125045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187511.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2543125045 is about 50429.4065501469. The cubic root of 2543125045 is about 1364.9683194265.

Adding to 2543125045 its reverse (5405213452), we get a palindrome (7948338497).

The spelling of 2543125045 in words is "two billion, five hundred forty-three million, one hundred twenty-five thousand, forty-five".