25255503 has 64 divisors (see below), whose sum is σ = 48563200. Its totient is φ = 12597120.

The previous prime is 25255501. The next prime is 25255511. The reversal of 25255503 is 30555252.

It is not a de Polignac number, because 25255503 - 2¹ = 25255501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25255501) 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 63 ways as a sum of consecutive naturals, for example, 46413 + ... + 46953.

It is an arithmetic number, because the mean of its divisors is an integer number (758800).

Almost surely, 2^25255503 is an apocalyptic number.

25255503 is a deficient number, since it is larger than the sum of its proper divisors (23307697).

25255503 is a wasteful number, since it uses less digits than its factorization.

25255503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 25255503 is about 5025.4853496951. The cubic root of 25255503 is about 293.3945265183.

It can be divided in two parts, 252 and 55503, that added together give a palindrome (55755).

The spelling of 25255503 in words is "twenty-five million, two hundred fifty-five thousand, five hundred three".