25490600 has 24 divisors (see below), whose sum is σ = 59266110. Its totient is φ = 10196160.

The previous prime is 25490593. The next prime is 25490603. The reversal of 25490600 is 609452.

It can be written as a sum of positive squares in 3 ways, for example, as 24940036 + 550564 = 4994^2 + 742^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25490600.

It is not an unprimeable number, because it can be changed into a prime (25490603) 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 5 ways as a sum of consecutive naturals, for example, 63527 + ... + 63926.

Almost surely, 2^25490600 is an apocalyptic number.

25490600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25490600 is an abundant number, since it is smaller than the sum of its proper divisors (33775510).

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

25490600 is a wasteful number, since it uses less digits than its factorization.

25490600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127469 (or 127460 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 25490600 is about 5048.8216447009. The cubic root of 25490600 is about 294.3020943443.

The spelling of 25490600 in words is "twenty-five million, four hundred ninety thousand, six hundred".