249968535245 has 128 divisors (see below), whose sum is σ = 382065610752. Its totient is φ = 154203033600.

The previous prime is 249968535197. The next prime is 249968535269. The reversal of 249968535245 is 542535869942.

It is a happy number.

249968535245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 249968535245 - 2¹⁴ = 249968518861 is a prime.

It is a super-2 number, since 2×249968535245² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 92340182 + ... + 92342888.

It is an arithmetic number, because the mean of its divisors is an integer number (2984887584).

Almost surely, 2^249968535245 is an apocalyptic number.

It is an amenable number.

249968535245 is a deficient number, since it is larger than the sum of its proper divisors (132097075507).

249968535245 is a wasteful number, since it uses less digits than its factorization.

249968535245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931.

The product of its digits is 93312000, while the sum is 62.

The spelling of 249968535245 in words is "two hundred forty-nine billion, nine hundred sixty-eight million, five hundred thirty-five thousand, two hundred forty-five".