245503320 has 64 divisors (see below), whose sum is σ = 738033120. Its totient is φ = 65332224.

The previous prime is 245503309. The next prime is 245503327. The reversal of 245503320 is 23305542.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245503327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65004 + ... + 68676.

Almost surely, 2^245503320 is an apocalyptic number.

245503320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245503320 is an abundant number, since it is smaller than the sum of its proper divisors (492529800).

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

245503320 is a wasteful number, since it uses less digits than its factorization.

245503320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4244 (or 4240 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 245503320 is about 15668.5455610915. The cubic root of 245503320 is about 626.1606762614.

Adding to 245503320 its reverse (23305542), we get a palindrome (268808862).

The spelling of 245503320 in words is "two hundred forty-five million, five hundred three thousand, three hundred twenty".