245250212505 has 16 divisors (see below), whose sum is σ = 392749788480. Its totient is φ = 130683630528.

The previous prime is 245250212407. The next prime is 245250212509. The reversal of 245250212505 is 505212052542.

It is a happy number.

It is not a de Polignac number, because 245250212505 - 2²¹ = 245248115353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245250212509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7262770 + ... + 7296459.

It is an arithmetic number, because the mean of its divisors is an integer number (24546861780).

Almost surely, 2^245250212505 is an apocalyptic number.

It is an amenable number.

245250212505 is a deficient number, since it is larger than the sum of its proper divisors (147499575975).

245250212505 is a wasteful number, since it uses less digits than its factorization.

245250212505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14560360.

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 245250212505 in words is "two hundred forty-five billion, two hundred fifty million, two hundred twelve thousand, five hundred five".