25145633 has 2 divisors, whose sum is σ = 25145634. Its totient is φ = 25145632.

The previous prime is 25145629. The next prime is 25145641. The reversal of 25145633 is 33654152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22733824 + 2411809 = 4768^2 + 1553^2 .

It is a cyclic number.

It is not a de Polignac number, because 25145633 - 2² = 25145629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25145596 and 25145605.

It is not a weakly prime, because it can be changed into another prime (25145663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12572816 + 12572817.

It is an arithmetic number, because the mean of its divisors is an integer number (12572817).

Almost surely, 2^25145633 is an apocalyptic number.

It is an amenable number.

25145633 is a deficient number, since it is larger than the sum of its proper divisors (1).

25145633 is an equidigital number, since it uses as much as digits as its factorization.

25145633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 29.

The square root of 25145633 is about 5014.5421525798. The cubic root of 25145633 is about 292.9684528464.

Adding to 25145633 its reverse (33654152), we get a palindrome (58799785).

The spelling of 25145633 in words is "twenty-five million, one hundred forty-five thousand, six hundred thirty-three".