30625001 has 4 divisors (see below), whose sum is σ = 33409104. Its totient is φ = 27840900.

The previous prime is 30624959. The next prime is 30625009. The reversal of 30625001 is 10052603.

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: 10052603 = 11 ⋅913873.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30625001 is a prime.

It is a Duffinian number.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 1392035 + ... + 1392056.

It is an arithmetic number, because the mean of its divisors is an integer number (8352276).

Almost surely, 2^30625001 is an apocalyptic number.

It is an amenable number.

30625001 is a deficient number, since it is larger than the sum of its proper divisors (2784103).

30625001 is a wasteful number, since it uses less digits than its factorization.

30625001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784102.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 30625001 is about 5533.9859956455. The cubic root of 30625001 is about 312.8662406891.

Adding to 30625001 its reverse (10052603), we get a palindrome (40677604).

The spelling of 30625001 in words is "thirty million, six hundred twenty-five thousand, one".