25201424 has 20 divisors (see below), whose sum is σ = 49188444. Its totient is φ = 12507648.

The previous prime is 25201417. The next prime is 25201427. The reversal of 25201424 is 42410252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14961424 + 10240000 = 3868^2 + 3200^2 .

It is a super-2 number, since 2×25201424² = 1270223543255552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25201396 and 25201405.

It is not an unprimeable number, because it can be changed into a prime (25201427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3557 + ... + 7940.

Almost surely, 2^25201424 is an apocalyptic number.

It is an amenable number.

25201424 is a deficient number, since it is larger than the sum of its proper divisors (23987020).

25201424 is a wasteful number, since it uses less digits than its factorization.

25201424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11642 (or 11636 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 25201424 is about 5020.1019909958. The cubic root of 25201424 is about 293.1849639934.

Adding to 25201424 its reverse (42410252), we get a palindrome (67611676).

The spelling of 25201424 in words is "twenty-five million, two hundred one thousand, four hundred twenty-four".