245501320 has 16 divisors (see below), whose sum is σ = 552378060. Its totient is φ = 98200512.

The previous prime is 245501279. The next prime is 245501329. The reversal of 245501320 is 23105542.

It can be written as a sum of positive squares in 2 ways, for example, as 244046884 + 1454436 = 15622^2 + 1206^2 .

It is a junction number, because it is equal to n+sod(n) for n = 245501291 and 245501300.

It is not an unprimeable number, because it can be changed into a prime (245501329) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3068727 + ... + 3068806.

Almost surely, 2^245501320 is an apocalyptic number.

245501320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245501320 is an abundant number, since it is smaller than the sum of its proper divisors (306876740).

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

245501320 is a wasteful number, since it uses less digits than its factorization.

245501320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6137544 (or 6137540 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 245501320 is about 15668.4817388284. The cubic root of 245501320 is about 626.1589759113.

Adding to 245501320 its reverse (23105542), we get a palindrome (268606862).

The spelling of 245501320 in words is "two hundred forty-five million, five hundred one thousand, three hundred twenty".