25220553 has 16 divisors (see below), whose sum is σ = 34603200. Its totient is φ = 16332800.

The previous prime is 25220521. The next prime is 25220557. The reversal of 25220553 is 35502252.

It is a cyclic number.

It is not a de Polignac number, because 25220553 - 2⁵ = 25220521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25220557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14953 + ... + 16553.

It is an arithmetic number, because the mean of its divisors is an integer number (2162700).

Almost surely, 2^25220553 is an apocalyptic number.

It is an amenable number.

25220553 is a deficient number, since it is larger than the sum of its proper divisors (9382647).

25220553 is a wasteful number, since it uses less digits than its factorization.

25220553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 25220553 is about 5022.0068697683. The cubic root of 25220553 is about 293.2591253686.

The spelling of 25220553 in words is "twenty-five million, two hundred twenty thousand, five hundred fifty-three".