30625005 has 16 divisors (see below), whose sum is σ = 49460544. Its totient is φ = 16179840.

The previous prime is 30624959. The next prime is 30625009. The reversal of 30625005 is 50052603.

It is not a de Polignac number, because 30625005 - 2⁷ = 30624877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30625009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7936 + ... + 11145.

It is an arithmetic number, because the mean of its divisors is an integer number (3091284).

Almost surely, 2^30625005 is an apocalyptic number.

It is an amenable number.

30625005 is a deficient number, since it is larger than the sum of its proper divisors (18835539).

30625005 is a wasteful number, since it uses less digits than its factorization.

30625005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19196.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 30625005 is about 5533.9863570486. The cubic root of 30625005 is about 312.8662543105.

Adding to 30625005 its reverse (50052603), we get a palindrome (80677608).

The spelling of 30625005 in words is "thirty million, six hundred twenty-five thousand, five".