25023553 has 2 divisors, whose sum is σ = 25023554. Its totient is φ = 25023552.

The previous prime is 25023527. The next prime is 25023577. The reversal of 25023553 is 35532052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24088464 + 935089 = 4908^2 + 967^2 .

It is a cyclic number.

It is not a de Polignac number, because 25023553 - 2²¹ = 22926401 is a prime.

It is not a weakly prime, because it can be changed into another prime (25023253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12511776 + 12511777.

It is an arithmetic number, because the mean of its divisors is an integer number (12511777).

Almost surely, 2^25023553 is an apocalyptic number.

It is an amenable number.

25023553 is a deficient number, since it is larger than the sum of its proper divisors (1).

25023553 is an equidigital number, since it uses as much as digits as its factorization.

25023553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 25023553 is about 5002.3547455174. The cubic root of 25023553 is about 292.4935708524.

The spelling of 25023553 in words is "twenty-five million, twenty-three thousand, five hundred fifty-three".