25630450 has 12 divisors (see below), whose sum is σ = 47672730. Its totient is φ = 10252160.

The previous prime is 25630439. The next prime is 25630457. The reversal of 25630450 is 5403652.

It can be written as a sum of positive squares in 3 ways, for example, as 22024249 + 3606201 = 4693^2 + 1899^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (25630457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 256255 + ... + 256354.

Almost surely, 2^25630450 is an apocalyptic number.

25630450 is a deficient number, since it is larger than the sum of its proper divisors (22042280).

25630450 is a wasteful number, since it uses less digits than its factorization.

25630450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512621 (or 512616 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 25630450 is about 5062.6524668399. The cubic root of 25630450 is about 294.8393264656.

The spelling of 25630450 in words is "twenty-five million, six hundred thirty thousand, four hundred fifty".