25425553 has 8 divisors (see below), whose sum is σ = 26865920. Its totient is φ = 23995440.

The previous prime is 25425551. The next prime is 25425577. The reversal of 25425553 is 35552452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25425553 - 2¹ = 25425551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25425551) 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 in 7 ways as a sum of consecutive naturals, for example, 2848 + ... + 7678.

It is an arithmetic number, because the mean of its divisors is an integer number (3358240).

Almost surely, 2^25425553 is an apocalyptic number.

It is an amenable number.

25425553 is a deficient number, since it is larger than the sum of its proper divisors (1440367).

25425553 is a wasteful number, since it uses less digits than its factorization.

25425553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127.

The product of its digits is 30000, while the sum is 31.

The square root of 25425553 is about 5042.3757297528. The cubic root of 25425553 is about 294.0515474118.

The spelling of 25425553 in words is "twenty-five million, four hundred twenty-five thousand, five hundred fifty-three".