25225553 has 2 divisors, whose sum is σ = 25225554. Its totient is φ = 25225552.

The previous prime is 25225523. The next prime is 25225573. The reversal of 25225553 is 35552252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20948929 + 4276624 = 4577^2 + 2068^2 .

It is a cyclic number.

It is not a de Polignac number, because 25225553 - 2⁶ = 25225489 is a prime.

It is not a weakly prime, because it can be changed into another prime (25225523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12612776 + 12612777.

It is an arithmetic number, because the mean of its divisors is an integer number (12612777).

Almost surely, 2^25225553 is an apocalyptic number.

It is an amenable number.

25225553 is a deficient number, since it is larger than the sum of its proper divisors (1).

25225553 is an equidigital number, since it uses as much as digits as its factorization.

25225553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15000, while the sum is 29.

The square root of 25225553 is about 5022.5046540546. The cubic root of 25225553 is about 293.2785037269.

The spelling of 25225553 in words is "twenty-five million, two hundred twenty-five thousand, five hundred fifty-three".