10881506 has 4 divisors (see below), whose sum is σ = 16322262. Its totient is φ = 5440752.

The previous prime is 10881503. The next prime is 10881511. The reversal of 10881506 is 60518801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60518801 = 7 ⋅8645543.

It can be written as a sum of positive squares in only one way, i.e., 7425625 + 3455881 = 2725^2 + 1859^2 .

It is not an unprimeable number, because it can be changed into a prime (10881503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720375 + ... + 2720378.

Almost surely, 2^10881506 is an apocalyptic number.

10881506 is a deficient number, since it is larger than the sum of its proper divisors (5440756).

10881506 is an equidigital number, since it uses as much as digits as its factorization.

10881506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5440755.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 10881506 is about 3298.7127792519. The cubic root of 10881506 is about 221.5965537266.

The spelling of 10881506 in words is "ten million, eight hundred eighty-one thousand, five hundred six".