25403533 has 2 divisors, whose sum is σ = 25403534. Its totient is φ = 25403532.

The previous prime is 25403503. The next prime is 25403563. The reversal of 25403533 is 33530452.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (25403503) and next prime (25403563).

It can be written as a sum of positive squares in only one way, i.e., 14730244 + 10673289 = 3838^2 + 3267^2 .

It is a cyclic number.

It is not a de Polignac number, because 25403533 - 2¹³ = 25395341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25403498 and 25403507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25403503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12701766 + 12701767.

It is an arithmetic number, because the mean of its divisors is an integer number (12701767).

Almost surely, 2^25403533 is an apocalyptic number.

It is an amenable number.

25403533 is a deficient number, since it is larger than the sum of its proper divisors (1).

25403533 is an equidigital number, since it uses as much as digits as its factorization.

25403533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 25403533 is about 5040.1917622249. The cubic root of 25403533 is about 293.9666343427.

Adding to 25403533 its reverse (33530452), we get a palindrome (58933985).

The spelling of 25403533 in words is "twenty-five million, four hundred three thousand, five hundred thirty-three".