10520641 has 8 divisors (see below), whose sum is σ = 10861704. Its totient is φ = 10183680.

The previous prime is 10520599. The next prime is 10520647. The reversal of 10520641 is 14602501.

It can be written as a sum of positive squares in 4 ways, for example, as 255025 + 10265616 = 505^2 + 3204^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10520641 - 2¹¹ = 10518593 is a prime.

It is a super-2 number, since 2×10520641² = 221367774101762, which contains 22 as substring.

It is a deceptive number, since it divides R_10520640.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10520647) 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, 4681 + ... + 6553.

It is an arithmetic number, because the mean of its divisors is an integer number (1357713).

Almost surely, 2^10520641 is an apocalyptic number.

10520641 is the 1873-rd octagonal number.

It is an amenable number.

10520641 is a deficient number, since it is larger than the sum of its proper divisors (341063).

10520641 is a wasteful number, since it uses less digits than its factorization.

10520641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 10520641 is about 3243.5537609233. The cubic root of 10520641 is about 219.1193514139.

The spelling of 10520641 in words is "ten million, five hundred twenty thousand, six hundred forty-one".