245205504 has 120 divisors (see below), whose sum is σ = 714954240. Its totient is φ = 80898048.

The previous prime is 245205497. The next prime is 245205539. The reversal of 245205504 is 405502542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 585007 + ... + 585425.

It is an arithmetic number, because the mean of its divisors is an integer number (5957952).

Almost surely, 2^245205504 is an apocalyptic number.

245205504 is a gapful number since it is divisible by the number (24) 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 245205504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357477120).

245205504 is an abundant number, since it is smaller than the sum of its proper divisors (469748736).

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

245205504 is a wasteful number, since it uses less digits than its factorization.

245205504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 245205504 is about 15659.0390509763. The cubic root of 245205504 is about 625.9073787712.

The spelling of 245205504 in words is "two hundred forty-five million, two hundred five thousand, five hundred four".