10640505 has 16 divisors (see below), whose sum is σ = 17075520. Its totient is φ = 5658048.

The previous prime is 10640501. The next prime is 10640527. The reversal of 10640505 is 50504601.

It is a happy number.

10640505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10640505 - 2² = 10640501 is a prime.

It is a super-2 number, since 2×10640505² = 226440693310050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10640501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5439 + ... + 7131.

It is an arithmetic number, because the mean of its divisors is an integer number (1067220).

Almost surely, 2^10640505 is an apocalyptic number.

10640505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10640505 is a deficient number, since it is larger than the sum of its proper divisors (6435015).

10640505 is a wasteful number, since it uses less digits than its factorization.

10640505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 10640505 is about 3261.9786939831. The cubic root of 10640505 is about 219.9483694268.

The spelling of 10640505 in words is "ten million, six hundred forty thousand, five hundred five".