227272047505 has 4 divisors (see below), whose sum is σ = 272726457012. Its totient is φ = 181817638000.

The previous prime is 227272047493. The next prime is 227272047517. The reversal of 227272047505 is 505740272722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505740272722 = 2 ⋅252870136361.

It is an interprime number because it is at equal distance from previous prime (227272047493) and next prime (227272047517).

It can be written as a sum of positive squares in 2 ways, for example, as 165402449809 + 61869597696 = 406697^2 + 248736^2 .

It is a de Polignac number, because none of the positive numbers 2^k-227272047505 is a prime.

It is a super-2 number, since 2×227272047505² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22727204746 + ... + 22727204755.

It is an arithmetic number, because the mean of its divisors is an integer number (68181614253).

Almost surely, 2^227272047505 is an apocalyptic number.

It is an amenable number.

227272047505 is a deficient number, since it is larger than the sum of its proper divisors (45454409507).

227272047505 is an equidigital number, since it uses as much as digits as its factorization.

227272047505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45454409506.

The product of its (nonzero) digits is 548800, while the sum is 43.

The spelling of 227272047505 in words is "two hundred twenty-seven billion, two hundred seventy-two million, forty-seven thousand, five hundred five".