25054553 has 4 divisors (see below), whose sum is σ = 25121040. Its totient is φ = 24988068.

The previous prime is 25054537. The next prime is 25054571. The reversal of 25054553 is 35545052.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25054553 - 2⁴ = 25054537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25054573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32675 + ... + 33432.

It is an arithmetic number, because the mean of its divisors is an integer number (6280260).

Almost surely, 2^25054553 is an apocalyptic number.

It is an amenable number.

25054553 is a deficient number, since it is larger than the sum of its proper divisors (66487).

25054553 is an equidigital number, since it uses as much as digits as its factorization.

25054553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66486.

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

The square root of 25054553 is about 5005.4523272128. The cubic root of 25054553 is about 292.6143045599.

The spelling of 25054553 in words is "twenty-five million, fifty-four thousand, five hundred fifty-three".