25320650 has 24 divisors (see below), whose sum is σ = 49868460. Its totient is φ = 9532160.

The previous prime is 25320649. The next prime is 25320653. The reversal of 25320650 is 5602352.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5669161 + 19651489 = 2381^2 + 4433^2 .

It is a super-2 number, since 2×25320650² = 1282270632845000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25320653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14045 + ... + 15744.

Almost surely, 2^25320650 is an apocalyptic number.

25320650 is a deficient number, since it is larger than the sum of its proper divisors (24547810).

25320650 is a wasteful number, since it uses less digits than its factorization.

25320650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29818 (or 29813 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 25320650 is about 5031.9628377006. The cubic root of 25320650 is about 293.6465819741.

The spelling of 25320650 in words is "twenty-five million, three hundred twenty thousand, six hundred fifty".