2147731424225 has 12 divisors (see below), whose sum is σ = 2663233153776. Its totient is φ = 1718155340880.

The previous prime is 2147731424221. The next prime is 2147731424269. The reversal of 2147731424225 is 5224241377412.

It is not a de Polignac number, because 2147731424225 - 2² = 2147731424221 is a prime.

It is a super-2 number, since 2×2147731424225² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2147731424221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 787154 + ... + 2216996.

It is an arithmetic number, because the mean of its divisors is an integer number (221936096148).

Almost surely, 2^{2147731424225} is an apocalyptic number.

2147731424225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2147731424225 is a deficient number, since it is larger than the sum of its proper divisors (515501729551).

2147731424225 is a wasteful number, since it uses less digits than its factorization.

2147731424225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489936 (or 1489931 counting only the distinct ones).

The product of its digits is 752640, while the sum is 44.

The spelling of 2147731424225 in words is "two trillion, one hundred forty-seven billion, seven hundred thirty-one million, four hundred twenty-four thousand, two hundred twenty-five".