25528733 has 2 divisors, whose sum is σ = 25528734. Its totient is φ = 25528732.

The previous prime is 25528697. The next prime is 25528739. The reversal of 25528733 is 33782552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22829284 + 2699449 = 4778^2 + 1643^2 .

It is a cyclic number.

It is not a de Polignac number, because 25528733 - 2¹⁰ = 25527709 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25528693 and 25528702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25528739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12764366 + 12764367.

It is an arithmetic number, because the mean of its divisors is an integer number (12764367).

Almost surely, 2^25528733 is an apocalyptic number.

It is an amenable number.

25528733 is a deficient number, since it is larger than the sum of its proper divisors (1).

25528733 is an equidigital number, since it uses as much as digits as its factorization.

25528733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 35.

The square root of 25528733 is about 5052.5966591447. The cubic root of 25528733 is about 294.4487762610.

The spelling of 25528733 in words is "twenty-five million, five hundred twenty-eight thousand, seven hundred thirty-three".