25200425 has 6 divisors (see below), whose sum is σ = 31248558. Its totient is φ = 20160320.

The previous prime is 25200421. The next prime is 25200431. The reversal of 25200425 is 52400252.

It can be written as a sum of positive squares in 3 ways, for example, as 9048064 + 16152361 = 3008^2 + 4019^2 .

It is not a de Polignac number, because 25200425 - 2² = 25200421 is a prime.

It is a super-2 number, since 2×25200425² = 1270122840361250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25200397 and 25200406.

It is not an unprimeable number, because it can be changed into a prime (25200421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503984 + ... + 504033.

It is an arithmetic number, because the mean of its divisors is an integer number (5208093).

Almost surely, 2^25200425 is an apocalyptic number.

25200425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25200425 is a deficient number, since it is larger than the sum of its proper divisors (6048133).

25200425 is a wasteful number, since it uses less digits than its factorization.

25200425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008027 (or 1008022 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 25200425 is about 5020.0024900392. The cubic root of 25200425 is about 293.1810899312.

Adding to 25200425 its reverse (52400252), we get a palindrome (77600677).

It can be divided in two parts, 252004 and 25, that multiplied together give a square (6300100 = 2510²).

The spelling of 25200425 in words is "twenty-five million, two hundred thousand, four hundred twenty-five".