25226020 has 12 divisors (see below), whose sum is σ = 52974684. Its totient is φ = 10090400.

The previous prime is 25226017. The next prime is 25226021. The reversal of 25226020 is 2062252.

It can be written as a sum of positive squares in 2 ways, for example, as 6770404 + 18455616 = 2602^2 + 4296^2 .

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (25226021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630631 + ... + 630670.

It is an arithmetic number, because the mean of its divisors is an integer number (4414557).

Almost surely, 2^25226020 is an apocalyptic number.

25226020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25226020 is an abundant number, since it is smaller than the sum of its proper divisors (27748664).

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

25226020 is a wasteful number, since it uses less digits than its factorization.

25226020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261310 (or 1261308 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 25226020 is about 5022.5511445878. The cubic root of 25226020 is about 293.2803135348.

Adding to 25226020 its reverse (2062252), we get a palindrome (27288272).

The spelling of 25226020 in words is "twenty-five million, two hundred twenty-six thousand, twenty".