2171652125 has 32 divisors (see below), whose sum is σ = 2784862080. Its totient is φ = 1689744000.

The previous prime is 2171652073. The next prime is 2171652127. The reversal of 2171652125 is 5212561712.

It is not a de Polignac number, because 2171652125 - 2⁸ = 2171651869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2171652091 and 2171652100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171652127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3295046 + ... + 3295704.

It is an arithmetic number, because the mean of its divisors is an integer number (87026940).

Almost surely, 2^2171652125 is an apocalyptic number.

2171652125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2171652125 is a deficient number, since it is larger than the sum of its proper divisors (613209955).

2171652125 is an equidigital number, since it uses as much as digits as its factorization.

2171652125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358 (or 1348 counting only the distinct ones).

The product of its digits is 8400, while the sum is 32.

The square root of 2171652125 is about 46600.9884551819. The cubic root of 2171652125 is about 1294.9810673877.

The spelling of 2171652125 in words is "two billion, one hundred seventy-one million, six hundred fifty-two thousand, one hundred twenty-five".