227199989025 has 81 divisors (see below), whose sum is σ = 417188772819. Its totient is φ = 118195187040.

The previous prime is 227199988997. The next prime is 227199989047. The reversal of 227199989025 is 520989991722.

The square root of 227199989025 is 476655.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 81791996049 + 145407992976 = 285993^2 + 381324^2 .

It is a de Polignac number, because none of the positive numbers 2^k-227199989025 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 307442106 + ... + 307442844.

Almost surely, 2^227199989025 is an apocalyptic number.

227199989025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

227199989025 is the 476655-th square number.

227199989025 is the 238328-th centered octagonal number.

It is an amenable number.

227199989025 is a deficient number, since it is larger than the sum of its proper divisors (189988783794).

227199989025 is an frugal number, since it uses more digits than its factorization.

227199989025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 63.

The spelling of 227199989025 in words is "two hundred twenty-seven billion, one hundred ninety-nine million, nine hundred eighty-nine thousand, twenty-five".