30625061 has 4 divisors (see below), whose sum is σ = 31012800. Its totient is φ = 30237324.

The previous prime is 30625051. The next prime is 30625081. The reversal of 30625061 is 16052603.

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.

It is a cyclic number.

It is not a de Polignac number, because 30625061 - 2¹⁰ = 30624037 is a prime.

It is a super-2 number, since 2×30625061² = 1875788722507442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30625031) 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, 193751 + ... + 193908.

It is an arithmetic number, because the mean of its divisors is an integer number (7753200).

Almost surely, 2^30625061 is an apocalyptic number.

It is an amenable number.

30625061 is a deficient number, since it is larger than the sum of its proper divisors (387739).

30625061 is an equidigital number, since it uses as much as digits as its factorization.

30625061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387738.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 30625061 is about 5533.9914166901. The cubic root of 30625061 is about 312.8664450098.

Adding to 30625061 its reverse (16052603), we get a palindrome (46677664).

The spelling of 30625061 in words is "thirty million, six hundred twenty-five thousand, sixty-one".