25500361 has 2 divisors, whose sum is σ = 25500362. Its totient is φ = 25500360.

The previous prime is 25500283. The next prime is 25500389. The reversal of 25500361 is 16300552.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21678336 + 3822025 = 4656^2 + 1955^2 .

It is a cyclic number.

It is not a de Polignac number, because 25500361 - 2¹³ = 25492169 is a prime.

It is a super-2 number, since 2×25500361² = 1300536822260642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25500061) 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 as a sum of consecutive naturals, namely, 12750180 + 12750181.

It is an arithmetic number, because the mean of its divisors is an integer number (12750181).

Almost surely, 2^25500361 is an apocalyptic number.

It is an amenable number.

25500361 is a deficient number, since it is larger than the sum of its proper divisors (1).

25500361 is an equidigital number, since it uses as much as digits as its factorization.

25500361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 25500361 is about 5049.7882133808. The cubic root of 25500361 is about 294.3396548064.

The spelling of 25500361 in words is "twenty-five million, five hundred thousand, three hundred sixty-one".