25501113 has 18 divisors (see below), whose sum is σ = 40489722. Its totient is φ = 15454560.

The previous prime is 25501093. The next prime is 25501129. The reversal of 25501113 is 31110552.

25501113 is a `hidden beast` number, since 2 + 550 + 1 + 113 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21040569 + 4460544 = 4587^2 + 2112^2 .

It is not a de Polignac number, because 25501113 - 2¹⁰ = 25500089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25501153) 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 17 ways as a sum of consecutive naturals, for example, 10620 + ... + 12797.

It is an arithmetic number, because the mean of its divisors is an integer number (2249429).

Almost surely, 2^25501113 is an apocalyptic number.

It is an amenable number.

25501113 is a deficient number, since it is larger than the sum of its proper divisors (14988609).

25501113 is a wasteful number, since it uses less digits than its factorization.

25501113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23445 (or 23431 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 25501113 is about 5049.8626714001. The cubic root of 25501113 is about 294.3425481151.

Adding to 25501113 its reverse (31110552), we get a palindrome (56611665).

It can be divided in two parts, 2550 and 1113, that added together give a palindrome (3663).

The spelling of 25501113 in words is "twenty-five million, five hundred one thousand, one hundred thirteen".