31663050 has 48 divisors (see below), whose sum is σ = 80366880. Its totient is φ = 8245440.

The previous prime is 31663013. The next prime is 31663057. The reversal of 31663050 is 5036613.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31663050.

It is not an unprimeable number, because it can be changed into a prime (31663057) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3996 + ... + 8904.

It is an arithmetic number, because the mean of its divisors is an integer number (1674310).

Almost surely, 2^31663050 is an apocalyptic number.

31663050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31663050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40183440).

31663050 is an abundant number, since it is smaller than the sum of its proper divisors (48703830).

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

31663050 is a wasteful number, since it uses less digits than its factorization.

31663050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4967 (or 4962 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 31663050 is about 5626.9929802693. The cubic root of 31663050 is about 316.3619537288.

Adding to 31663050 its reverse (5036613), we get a palindrome (36699663).

It can be divided in two parts, 3166 and 3050, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 31663050 in words is "thirty-one million, six hundred sixty-three thousand, fifty".