2545540001 has 4 divisors (see below), whose sum is σ = 2547161904. Its totient is φ = 2543918100.

The previous prime is 2545539979. The next prime is 2545540007. The reversal of 2545540001 is 1000455452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2545540001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2545540007) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 808595 + ... + 811736.

It is an arithmetic number, because the mean of its divisors is an integer number (636790476).

Almost surely, 2^2545540001 is an apocalyptic number.

It is an amenable number.

2545540001 is a deficient number, since it is larger than the sum of its proper divisors (1621903).

2545540001 is a wasteful number, since it uses less digits than its factorization.

2545540001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621902.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2545540001 is about 50453.3447949687. The cubic root of 2545540001 is about 1365.4002415068.

Adding to 2545540001 its reverse (1000455452), we get a palindrome (3545995453).

It can be divided in two parts, 25455 and 40001, that added together give a palindrome (65456).

The spelling of 2545540001 in words is "two billion, five hundred forty-five million, five hundred forty thousand, one".