10757521 has 4 divisors (see below), whose sum is σ = 11128500. Its totient is φ = 10386544.

The previous prime is 10757507. The next prime is 10757543. The reversal of 10757521 is 12575701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12575701 = 19 ⋅661879.

It can be written as a sum of positive squares in 2 ways, for example, as 8614225 + 2143296 = 2935^2 + 1464^2 .

It is a cyclic number.

It is not a de Polignac number, because 10757521 - 2¹⁷ = 10626449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10757521.

It is not an unprimeable number, because it can be changed into a prime (10757561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185446 + ... + 185503.

It is an arithmetic number, because the mean of its divisors is an integer number (2782125).

Almost surely, 2^10757521 is an apocalyptic number.

It is an amenable number.

10757521 is a deficient number, since it is larger than the sum of its proper divisors (370979).

10757521 is an equidigital number, since it uses as much as digits as its factorization.

10757521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370978.

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 10757521 is about 3279.8660033605. The cubic root of 10757521 is about 220.7517054745.

The spelling of 10757521 in words is "ten million, seven hundred fifty-seven thousand, five hundred twenty-one".