30053661 has 32 divisors (see below), whose sum is σ = 45121536. Its totient is φ = 17640000.

The previous prime is 30053623. The next prime is 30053693. The reversal of 30053661 is 16635003.

It is not a de Polignac number, because 30053661 - 2¹¹ = 30051613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30053461) 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 31 ways as a sum of consecutive naturals, for example, 236580 + ... + 236706.

It is an arithmetic number, because the mean of its divisors is an integer number (1410048).

Almost surely, 2^30053661 is an apocalyptic number.

It is an amenable number.

30053661 is a deficient number, since it is larger than the sum of its proper divisors (15067875).

30053661 is a wasteful number, since it uses less digits than its factorization.

30053661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

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

The square root of 30053661 is about 5482.1219431895. The cubic root of 30053661 is about 310.9084038042.

Adding to 30053661 its reverse (16635003), we get a palindrome (46688664).

It can be divided in two parts, 3005 and 3661, that added together give a palindrome (6666).

The spelling of 30053661 in words is "thirty million, fifty-three thousand, six hundred sixty-one".