10557538 has 4 divisors (see below), whose sum is σ = 15836310. Its totient is φ = 5278768.

The previous prime is 10557509. The next prime is 10557539. The reversal of 10557538 is 83575501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6285049 + 4272489 = 2507^2 + 2067^2 .

It is a super-2 number, since 2×10557538² = 222923217242888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10557539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639383 + ... + 2639386.

Almost surely, 2^10557538 is an apocalyptic number.

10557538 is a deficient number, since it is larger than the sum of its proper divisors (5278772).

10557538 is an equidigital number, since it uses as much as digits as its factorization.

10557538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5278771.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 10557538 is about 3249.2365257088. The cubic root of 10557538 is about 219.3752107800.

The spelling of 10557538 in words is "ten million, five hundred fifty-seven thousand, five hundred thirty-eight".