245120305550 has 48 divisors (see below), whose sum is σ = 473516478720. Its totient is φ = 94335464160.

The previous prime is 245120305489. The next prime is 245120305553. The reversal of 245120305550 is 55503021542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245120305553) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 745304 + ... + 1022603.

It is an arithmetic number, because the mean of its divisors is an integer number (9864926640).

Almost surely, 2^245120305550 is an apocalyptic number.

245120305550 is a deficient number, since it is larger than the sum of its proper divisors (228396173170).

245120305550 is a wasteful number, since it uses less digits than its factorization.

245120305550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768025 (or 1768020 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 245120305550 in words is "two hundred forty-five billion, one hundred twenty million, three hundred five thousand, five hundred fifty".