16750025 has 6 divisors (see below), whose sum is σ = 20770062. Its totient is φ = 13400000.

The previous prime is 16750021. The next prime is 16750061. The reversal of 16750025 is 52005761.

16750025 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 3 ways, for example, as 4583881 + 12166144 = 2141^2 + 3488^2 .

It is not a de Polignac number, because 16750025 - 2² = 16750021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16749976 and 16750003.

It is not an unprimeable number, because it can be changed into a prime (16750021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 334976 + ... + 335025.

It is an arithmetic number, because the mean of its divisors is an integer number (3461677).

Almost surely, 2^16750025 is an apocalyptic number.

It is an amenable number.

16750025 is a deficient number, since it is larger than the sum of its proper divisors (4020037).

16750025 is an equidigital number, since it uses as much as digits as its factorization.

16750025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670011 (or 670006 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 16750025 is about 4092.6794401712. The cubic root of 16750025 is about 255.8616246398.

Adding to 16750025 its reverse (52005761), we get a palindrome (68755786).

The spelling of 16750025 in words is "sixteen million, seven hundred fifty thousand, twenty-five".