1056523406 has 8 divisors (see below), whose sum is σ = 1604845920. Its totient is φ = 521574768.

The previous prime is 1056523399. The next prime is 1056523409. The reversal of 1056523406 is 6043256501.

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

It is a super-2 number, since 2×1056523406² = 2232483414851681672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056523409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3343271 + ... + 3343586.

It is an arithmetic number, because the mean of its divisors is an integer number (200605740).

Almost surely, 2^1056523406 is an apocalyptic number.

1056523406 is a deficient number, since it is larger than the sum of its proper divisors (548322514).

1056523406 is an equidigital number, since it uses as much as digits as its factorization.

1056523406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6686938.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1056523406 is about 32504.2059739967. The cubic root of 1056523406 is about 1018.4968908832.

Adding to 1056523406 its reverse (6043256501), we get a palindrome (7099779907).

The spelling of 1056523406 in words is "one billion, fifty-six million, five hundred twenty-three thousand, four hundred six".