10640625 has 28 divisors (see below), whose sum is σ = 17812272. Its totient is φ = 5650000.

The previous prime is 10640603. The next prime is 10640629. The reversal of 10640625 is 52604601.

10640625 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10640625 - 2⁸ = 10640369 is a prime.

It is a super-2 number, since 2×10640625² = 226445800781250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10640595 and 10640604.

It is not an unprimeable number, because it can be changed into a prime (10640629) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 46762 + ... + 46988.

Almost surely, 2^10640625 is an apocalyptic number.

10640625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10640625 is a deficient number, since it is larger than the sum of its proper divisors (7171647).

10640625 is an frugal number, since it uses more digits than its factorization.

10640625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 10640625 is about 3261.9970876750. The cubic root of 10640625 is about 219.9491962580.

The spelling of 10640625 in words is "ten million, six hundred forty thousand, six hundred twenty-five".