245530520 has 64 divisors (see below), whose sum is σ = 592125120. Its totient is φ = 91390464.

The previous prime is 245530489. The next prime is 245530553. The reversal of 245530520 is 25035542.

It is a self number, because there is not a number n which added to its sum of digits gives 245530520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30434 + ... + 37646.

It is an arithmetic number, because the mean of its divisors is an integer number (9251955).

Almost surely, 2^245530520 is an apocalyptic number.

245530520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245530520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296062560).

245530520 is an abundant number, since it is smaller than the sum of its proper divisors (346594600).

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

245530520 is a wasteful number, since it uses less digits than its factorization.

245530520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7284 (or 7280 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 245530520 is about 15669.4135180612. The cubic root of 245530520 is about 626.1838001054.

The spelling of 245530520 in words is "two hundred forty-five million, five hundred thirty thousand, five hundred twenty".