30723025 has 12 divisors (see below), whose sum is σ = 38230192. Its totient is φ = 24492240.

The previous prime is 30723001. The next prime is 30723047. The reversal of 30723025 is 52032703.

It is a happy number.

It is not a de Polignac number, because 30723025 - 2¹³ = 30714833 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30722987 and 30723005.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5674 + ... + 9676.

Almost surely, 2^30723025 is an apocalyptic number.

It is an amenable number.

30723025 is a deficient number, since it is larger than the sum of its proper divisors (7507167).

30723025 is a wasteful number, since it uses less digits than its factorization.

30723025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4320 (or 4315 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 30723025 is about 5542.8354657161. The cubic root of 30723025 is about 313.1996908820.

Adding to 30723025 its reverse (52032703), we get a palindrome (82755728).

It can be divided in two parts, 307 and 23025, that added together give a palindrome (23332).

The spelling of 30723025 in words is "thirty million, seven hundred twenty-three thousand, twenty-five".