30250000 has 105 divisors (see below), whose sum is σ = 80526313. Its totient is φ = 11000000.

The previous prime is 30249971. The next prime is 30250001. The reversal of 30250000 is 5203.

The square root of 30250000 is 5500.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 3 ways, for example, as 26501904 + 3748096 = 5148^2 + 1936^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30250001) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 2749995 + ... + 2750005.

Almost surely, 2^30250000 is an apocalyptic number.

30250000 is the 5500-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30250000

30250000 is an abundant number, since it is smaller than the sum of its proper divisors (50276313).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30250000 is an frugal number, since it uses more digits than its factorization.

30250000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 10.

The cubic root of 30250000 is about 311.5839842185.

Adding to 30250000 its reverse (5203), we get a palindrome (30255203).

The spelling of 30250000 in words is "thirty million, two hundred fifty thousand".