245543540 has 24 divisors (see below), whose sum is σ = 562518432. Its totient is φ = 89288480.

The previous prime is 245543531. The next prime is 245543549. The reversal of 245543540 is 45345542.

245543540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (245543531) and next prime (245543549).

It is a junction number, because it is equal to n+sod(n) for n = 245543497 and 245543506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245543549) 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, 557834 + ... + 558273.

It is an arithmetic number, because the mean of its divisors is an integer number (23438268).

Almost surely, 2^245543540 is an apocalyptic number.

245543540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245543540 is an abundant number, since it is smaller than the sum of its proper divisors (316974892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245543540 is a wasteful number, since it uses less digits than its factorization.

245543540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116127 (or 1116125 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 32.

The square root of 245543540 is about 15669.8289716257. The cubic root of 245543540 is about 626.1948683410.

The spelling of 245543540 in words is "two hundred forty-five million, five hundred forty-three thousand, five hundred forty".