30342403525 has 18 divisors (see below), whose sum is σ = 43767370770. Its totient is φ = 20806218720.

The previous prime is 30342403519. The next prime is 30342403577. The reversal of 30342403525 is 52530424303.

It can be written as a sum of positive squares in 3 ways, for example, as 1088406081 + 29253997444 = 32991^2 + 171038^2 .

It is not a de Polignac number, because 30342403525 - 2¹⁹ = 30341879237 is a prime.

It is a super-2 number, since 2×30342403525² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12383430 + ... + 12385879.

Almost surely, 2^30342403525 is an apocalyptic number.

30342403525 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30342403525 is a deficient number, since it is larger than the sum of its proper divisors (13424967245).

30342403525 is a wasteful number, since it uses less digits than its factorization.

30342403525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24769333 (or 24769321 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 30342403525 its reverse (52530424303), we get a palindrome (82872827828).

The spelling of 30342403525 in words is "thirty billion, three hundred forty-two million, four hundred three thousand, five hundred twenty-five".