245503540 has 12 divisors (see below), whose sum is σ = 515557476. Its totient is φ = 98201408.

The previous prime is 245503529. The next prime is 245503571. The reversal of 245503540 is 45305542.

It can be written as a sum of positive squares in 2 ways, for example, as 46185616 + 199317924 = 6796^2 + 14118^2 .

It is a junction number, because it is equal to n+sod(n) for n = 245503499 and 245503508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6137569 + ... + 6137608.

It is an arithmetic number, because the mean of its divisors is an integer number (42963123).

Almost surely, 2^245503540 is an apocalyptic number.

245503540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245503540 is an abundant number, since it is smaller than the sum of its proper divisors (270053936).

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

245503540 is a wasteful number, since it uses less digits than its factorization.

245503540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12275186 (or 12275184 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 245503540 is about 15668.5525815246. The cubic root of 245503540 is about 626.1608632993.

The spelling of 245503540 in words is "two hundred forty-five million, five hundred three thousand, five hundred forty".