30525901 has 4 divisors (see below), whose sum is σ = 34886752. Its totient is φ = 26165052.

The previous prime is 30525883. The next prime is 30525907. The reversal of 30525901 is 10952503.

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: 10952503 = 53 ⋅206651.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30525901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30525907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2180415 + ... + 2180428.

It is an arithmetic number, because the mean of its divisors is an integer number (8721688).

Almost surely, 2^30525901 is an apocalyptic number.

It is an amenable number.

30525901 is a deficient number, since it is larger than the sum of its proper divisors (4360851).

30525901 is an equidigital number, since it uses as much as digits as its factorization.

30525901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360850.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 30525901 is about 5525.0249773191. The cubic root of 30525901 is about 312.5284061645.

The spelling of 30525901 in words is "thirty million, five hundred twenty-five thousand, nine hundred one".