30025641 has 4 divisors (see below), whose sum is σ = 40034192. Its totient is φ = 20017092.

The previous prime is 30025607. The next prime is 30025657. The reversal of 30025641 is 14652003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14652003 = 3 ⋅4884001.

It is not a de Polignac number, because 30025641 - 2¹⁸ = 29763497 is a prime.

It is a super-3 number, since 3×30025641³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

30025641 is a modest number, since divided by 25641 gives 30 as remainder.

It is not an unprimeable number, because it can be changed into a prime (30025661) 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 3 ways as a sum of consecutive naturals, for example, 5004271 + ... + 5004276.

It is an arithmetic number, because the mean of its divisors is an integer number (10008548).

Almost surely, 2^30025641 is an apocalyptic number.

It is an amenable number.

30025641 is a deficient number, since it is larger than the sum of its proper divisors (10008551).

30025641 is a wasteful number, since it uses less digits than its factorization.

30025641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10008550.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30025641 is about 5479.5657674673. The cubic root of 30025641 is about 310.8117504407.

Adding to 30025641 its reverse (14652003), we get a palindrome (44677644).

The spelling of 30025641 in words is "thirty million, twenty-five thousand, six hundred forty-one".