245124350505 has 24 divisors (see below), whose sum is σ = 425242064520. Its totient is φ = 130622261760.

The previous prime is 245124350491. The next prime is 245124350507. The reversal of 245124350505 is 505053421542.

245124350505 is a `hidden beast` number, since 2 + 4 + 512 + 43 + 50 + 50 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8554955049 + 236569395456 = 92493^2 + 486384^2 .

It is not a de Polignac number, because 245124350505 - 2⁷ = 245124350377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245124350505.

It is not an unprimeable number, because it can be changed into a prime (245124350507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2253040 + ... + 2359329.

It is an arithmetic number, because the mean of its divisors is an integer number (17718419355).

Almost surely, 2^245124350505 is an apocalyptic number.

It is an amenable number.

245124350505 is a deficient number, since it is larger than the sum of its proper divisors (180117714015).

245124350505 is a wasteful number, since it uses less digits than its factorization.

245124350505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613561 (or 4613558 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 245124350505 in words is "two hundred forty-five billion, one hundred twenty-four million, three hundred fifty thousand, five hundred five".