2197255972 has 12 divisors (see below), whose sum is σ = 3845722636. Its totient is φ = 1098478080.

The previous prime is 2197255961. The next prime is 2197255979. The reversal of 2197255972 is 2795527912.

It can be written as a sum of positive squares in 2 ways, for example, as 689797696 + 1507458276 = 26264^2 + 38826^2 .

It is not an unprimeable number, because it can be changed into a prime (2197255979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429 + ... + 66292.

Almost surely, 2^2197255972 is an apocalyptic number.

It is an amenable number.

2197255972 is a deficient number, since it is larger than the sum of its proper divisors (1648466664).

2197255972 is a wasteful number, since it uses less digits than its factorization.

2197255972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74958 (or 74956 counting only the distinct ones).

The product of its digits is 793800, while the sum is 49.

The square root of 2197255972 is about 46874.8970345536. The cubic root of 2197255972 is about 1300.0504856133.

The spelling of 2197255972 in words is "two billion, one hundred ninety-seven million, two hundred fifty-five thousand, nine hundred seventy-two".