245211240505 has 16 divisors (see below), whose sum is σ = 366861492864. Its totient is φ = 152858954880.

The previous prime is 245211240503. The next prime is 245211240541. The reversal of 245211240505 is 505042112542.

It is not a de Polignac number, because 245211240505 - 2¹ = 245211240503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245211240503) 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, 318455772 + ... + 318456541.

It is an arithmetic number, because the mean of its divisors is an integer number (22928843304).

Almost surely, 2^245211240505 is an apocalyptic number.

It is an amenable number.

245211240505 is a deficient number, since it is larger than the sum of its proper divisors (121650252359).

245211240505 is a wasteful number, since it uses less digits than its factorization.

245211240505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636912336.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 245211240505 in words is "two hundred forty-five billion, two hundred eleven million, two hundred forty thousand, five hundred five".