25725122 has 8 divisors (see below), whose sum is σ = 39528972. Its totient is φ = 12548800.

The previous prime is 25725113. The next prime is 25725143. The reversal of 25725122 is 22152752.

It can be written as a sum of positive squares in 2 ways, for example, as 25512601 + 212521 = 5051^2 + 461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 25725091 and 25725100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156779 + ... + 156942.

Almost surely, 2^25725122 is an apocalyptic number.

25725122 is a deficient number, since it is larger than the sum of its proper divisors (13803850).

25725122 is a wasteful number, since it uses less digits than its factorization.

25725122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313764.

The product of its digits is 2800, while the sum is 26.

The square root of 25725122 is about 5071.9938880089. The cubic root of 25725122 is about 295.2018995160.

Adding to 25725122 its reverse (22152752), we get a palindrome (47877874).

The spelling of 25725122 in words is "twenty-five million, seven hundred twenty-five thousand, one hundred twenty-two".