626532985 has 16 divisors (see below), whose sum is σ = 810366480. Its totient is φ = 462274560.

The previous prime is 626532979. The next prime is 626533001. The reversal of 626532985 is 589235626.

It can be written as a sum of positive squares in 8 ways, for example, as 126697536 + 499835449 = 11256^2 + 22357^2 .

It is not a de Polignac number, because 626532985 - 2⁵ = 626532953 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88165 + ... + 95005.

It is an arithmetic number, because the mean of its divisors is an integer number (50647905).

Almost surely, 2^626532985 is an apocalyptic number.

626532985 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

626532985 is a deficient number, since it is larger than the sum of its proper divisors (183833495).

626532985 is a wasteful number, since it uses less digits than its factorization.

626532985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8268.

The product of its digits is 777600, while the sum is 46.

The square root of 626532985 is about 25030.6409226771. The cubic root of 626532985 is about 855.6864339205.

The spelling of 626532985 in words is "six hundred twenty-six million, five hundred thirty-two thousand, nine hundred eighty-five".