10531782 has 20 divisors (see below), whose sum is σ = 23599356. Its totient is φ = 3510540.

The previous prime is 10531771. The next prime is 10531811. The reversal of 10531782 is 28713501.

It is a super-2 number, since 2×10531782² = 221836864191048, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 32344 + ... + 32667.

Almost surely, 2^10531782 is an apocalyptic number.

10531782 is an abundant number, since it is smaller than the sum of its proper divisors (13067574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10531782 is an equidigital number, since it uses as much as digits as its factorization.

10531782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65025 (or 65016 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 10531782 is about 3245.2707128990. The cubic root of 10531782 is about 219.1966707675.

Subtracting from 10531782 its sum of digits (27), we obtain a triangular number (10531755 = T₄₅₈₉).

The spelling of 10531782 in words is "ten million, five hundred thirty-one thousand, seven hundred eighty-two".