25115633 has 2 divisors, whose sum is σ = 25115634. Its totient is φ = 25115632.

The previous prime is 25115603. The next prime is 25115639. The reversal of 25115633 is 33651152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13778944 + 11336689 = 3712^2 + 3367^2 .

It is a cyclic number.

It is not a de Polignac number, because 25115633 - 2¹⁶ = 25050097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25115639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12557816 + 12557817.

It is an arithmetic number, because the mean of its divisors is an integer number (12557817).

Almost surely, 2^25115633 is an apocalyptic number.

It is an amenable number.

25115633 is a deficient number, since it is larger than the sum of its proper divisors (1).

25115633 is an equidigital number, since it uses as much as digits as its factorization.

25115633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 26.

The square root of 25115633 is about 5011.5499598428. The cubic root of 25115633 is about 292.8518978013.

Adding to 25115633 its reverse (33651152), we get a palindrome (58766785).

The spelling of 25115633 in words is "twenty-five million, one hundred fifteen thousand, six hundred thirty-three".