30996550 has 48 divisors (see below), whose sum is σ = 63589680. Its totient is φ = 11168640.

The previous prime is 30996523. The next prime is 30996551. The reversal of 30996550 is 5569903.

It is a super-2 number, since 2×30996550² = 1921572223805000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30996551) 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, 27396 + ... + 28504.

It is an arithmetic number, because the mean of its divisors is an integer number (1324785).

Almost surely, 2^30996550 is an apocalyptic number.

30996550 is an abundant number, since it is smaller than the sum of its proper divisors (32593130).

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

30996550 is a wasteful number, since it uses less digits than its factorization.

30996550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177 (or 1172 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 30996550 is about 5567.4545350636. The cubic root of 30996550 is about 314.1264112979.

It can be divided in two parts, 309 and 96550, that multiplied together give a triangular number (29833950 = T₇₇₂₄).

The spelling of 30996550 in words is "thirty million, nine hundred ninety-six thousand, five hundred fifty".