2543245907 has 8 divisors (see below), whose sum is σ = 2654507040. Its totient is φ = 2432041920.

The previous prime is 2543245853. The next prime is 2543245919. The reversal of 2543245907 is 7095423452.

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 2543245907 - 2⁶ = 2543245843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543245927) 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, 94319 + ... + 118247.

It is an arithmetic number, because the mean of its divisors is an integer number (331813380).

Almost surely, 2^2543245907 is an apocalyptic number.

2543245907 is a deficient number, since it is larger than the sum of its proper divisors (111261133).

2543245907 is a wasteful number, since it uses less digits than its factorization.

2543245907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28573.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 2543245907 is about 50430.6048645066. The cubic root of 2543245907 is about 1364.9899424539.

The spelling of 2543245907 in words is "two billion, five hundred forty-three million, two hundred forty-five thousand, nine hundred seven".