245513502 has 48 divisors (see below), whose sum is σ = 579812688. Its totient is φ = 74626560.

The previous prime is 245513491. The next prime is 245513503. The reversal of 245513502 is 205315542.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245513503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13102 + ... + 25742.

It is an arithmetic number, because the mean of its divisors is an integer number (12079431).

Almost surely, 2^245513502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245513502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289906344).

245513502 is an abundant number, since it is smaller than the sum of its proper divisors (334299186).

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

245513502 is a wasteful number, since it uses less digits than its factorization.

245513502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12745 (or 12742 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 245513502 is about 15668.8704762022. The cubic root of 245513502 is about 626.1693326003.

The spelling of 245513502 in words is "two hundred forty-five million, five hundred thirteen thousand, five hundred two".