30525601 has 4 divisors (see below), whose sum is σ = 30563604. Its totient is φ = 30487600.

The previous prime is 30525587. The next prime is 30525613. The reversal of 30525601 is 10652503.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10652503 = 47 ⋅226649.

It can be written as a sum of positive squares in 2 ways, for example, as 8856576 + 21669025 = 2976^2 + 4655^2 .

It is a cyclic number.

It is not a de Polignac number, because 30525601 - 2⁵ = 30525569 is a prime.

It is a super-2 number, since 2×30525601² = 1863624632822402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30520601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17770 + ... + 19411.

It is an arithmetic number, because the mean of its divisors is an integer number (7640901).

Almost surely, 2^30525601 is an apocalyptic number.

It is an amenable number.

30525601 is a deficient number, since it is larger than the sum of its proper divisors (38003).

30525601 is an equidigital number, since it uses as much as digits as its factorization.

30525601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38002.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 30525601 is about 5524.9978280539. The cubic root of 30525601 is about 312.5273823473.

The spelling of 30525601 in words is "thirty million, five hundred twenty-five thousand, six hundred one".