2152009625 has 8 divisors (see below), whose sum is σ = 2685708168. Its totient is φ = 1721607600.

The previous prime is 2152009621. The next prime is 2152009627. The reversal of 2152009625 is 5269002512.

It can be written as a sum of positive squares in 4 ways, for example, as 280495504 + 1871514121 = 16748^2 + 43261^2 .

It is not a de Polignac number, because 2152009625 - 2² = 2152009621 is a prime.

It is a super-2 number, since 2×2152009625² = 9262290852185281250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2152009591 and 2152009600.

It is not an unprimeable number, because it can be changed into a prime (2152009621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8607914 + ... + 8608163.

It is an arithmetic number, because the mean of its divisors is an integer number (335713521).

Almost surely, 2^2152009625 is an apocalyptic number.

2152009625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2152009625 is a deficient number, since it is larger than the sum of its proper divisors (533698543).

2152009625 is an equidigital number, since it uses as much as digits as its factorization.

2152009625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17216092 (or 17216082 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 2152009625 is about 46389.7577596607. The cubic root of 2152009625 is about 1291.0648869806.

The spelling of 2152009625 in words is "two billion, one hundred fifty-two million, nine thousand, six hundred twenty-five".