2176689025 has 81 divisors (see below), whose sum is σ = 3321516483. Its totient is φ = 1410847200.

The previous prime is 2176689023. The next prime is 2176689037. The reversal of 2176689025 is 5209866712.

The square root of 2176689025 is 46655.

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., 783608049 + 1393080976 = 27993^2 + 37324^2 .

It is not a de Polignac number, because 2176689025 - 2¹ = 2176689023 is a prime.

It is a super-2 number, since 2×2176689025² = 9475950223110901250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2176689023) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 50620654 + ... + 50620696.

Almost surely, 2^2176689025 is an apocalyptic number.

2176689025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2176689025 is the 46655-th square number.

2176689025 is the 23328-th centered octagonal number.

It is an amenable number.

2176689025 is a deficient number, since it is larger than the sum of its proper divisors (1144827458).

2176689025 is an equidigital number, since it uses as much as digits as its factorization.

2176689025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The cubic root of 2176689025 is about 1295.9814814153.

The spelling of 2176689025 in words is "two billion, one hundred seventy-six million, six hundred eighty-nine thousand, twenty-five".