245040153005525 has 12 divisors (see below), whose sum is σ = 303863373941700. Its totient is φ = 196023358394880.

The previous prime is 245040153005503. The next prime is 245040153005597. The reversal of 245040153005525 is 525500351040542.

It can be written as a sum of positive squares in 6 ways, for example, as 893996724196 + 244146156281329 = 945514^2 + 15625177^2 .

It is a de Polignac number, because none of the positive numbers 2^k-245040153005525 is a prime.

It is a super-2 number, since 2×245040153005525² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218529830 + ... + 219648279.

It is an arithmetic number, because the mean of its divisors is an integer number (25321947828475).

Almost surely, 2^{245040153005525} is an apocalyptic number.

245040153005525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245040153005525 is a deficient number, since it is larger than the sum of its proper divisors (58823220936175).

245040153005525 is a wasteful number, since it uses less digits than its factorization.

245040153005525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438200488 (or 438200483 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 41.

The spelling of 245040153005525 in words is "two hundred forty-five trillion, forty billion, one hundred fifty-three million, five thousand, five hundred twenty-five".