245155523013 has 6 divisors (see below), whose sum is σ = 354113533254. Its totient is φ = 163437015336.

The previous prime is 245155522999. The next prime is 245155523033. The reversal of 245155523013 is 310325551542.

245155523013 is a `hidden beast` number, since 24 + 51 + 5 + 552 + 30 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 180427004289 + 64728518724 = 424767^2 + 254418^2 .

It is not a de Polignac number, because 245155523013 - 2⁶ = 245155522949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245155523033) 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 5 ways as a sum of consecutive naturals, for example, 13619751270 + ... + 13619751287.

It is an arithmetic number, because the mean of its divisors is an integer number (59018922209).

Almost surely, 2^245155523013 is an apocalyptic number.

It is an amenable number.

245155523013 is a deficient number, since it is larger than the sum of its proper divisors (108958010241).

245155523013 is a wasteful number, since it uses less digits than its factorization.

245155523013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27239502563 (or 27239502560 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 245155523013 in words is "two hundred forty-five billion, one hundred fifty-five million, five hundred twenty-three thousand, thirteen".