245510540520 has 128 divisors (see below), whose sum is σ = 849473222400. Its totient is φ = 55601842176.

The previous prime is 245510540501. The next prime is 245510540533. The reversal of 245510540520 is 25045015542.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1249149 + ... + 1432268.

It is an arithmetic number, because the mean of its divisors is an integer number (6636509550).

Almost surely, 2^245510540520 is an apocalyptic number.

245510540520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245510540520 is an abundant number, since it is smaller than the sum of its proper divisors (603962681880).

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

245510540520 is a wasteful number, since it uses less digits than its factorization.

245510540520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681547 (or 2681543 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 245510540520 in words is "two hundred forty-five billion, five hundred ten million, five hundred forty thousand, five hundred twenty".