245321504 has 48 divisors (see below), whose sum is σ = 495827640. Its totient is φ = 119439360.

The previous prime is 245321501. The next prime is 245321563. The reversal of 245321504 is 405123542.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 201072400 + 44249104 = 14180^2 + 6652^2 .

It is not an unprimeable number, because it can be changed into a prime (245321501) 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, 212192 + ... + 213344.

Almost surely, 2^245321504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245321504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247913820).

245321504 is an abundant number, since it is smaller than the sum of its proper divisors (250506136).

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

245321504 is a wasteful number, since it uses less digits than its factorization.

245321504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 245321504 is about 15662.7425440119. The cubic root of 245321504 is about 626.0060630837.

The spelling of 245321504 in words is "two hundred forty-five million, three hundred twenty-one thousand, five hundred four".