245235304520 has 32 divisors (see below), whose sum is σ = 552599376120. Its totient is φ = 97948354560.

The previous prime is 245235304409. The next prime is 245235304541. The reversal of 245235304520 is 25403532542.

It can be written as a sum of positive squares in 4 ways, for example, as 156105590404 + 89129714116 = 395102^2 + 298546^2 .

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, 4527971 + ... + 4581810.

Almost surely, 2^245235304520 is an apocalyptic number.

245235304520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245235304520 is an abundant number, since it is smaller than the sum of its proper divisors (307364071600).

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

245235304520 is a wasteful number, since it uses less digits than its factorization.

245235304520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9110465 (or 9110461 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

The spelling of 245235304520 in words is "two hundred forty-five billion, two hundred thirty-five million, three hundred four thousand, five hundred twenty".