25021053 has 12 divisors (see below), whose sum is σ = 36515388. Its totient is φ = 16508160.

The previous prime is 25021037. The next prime is 25021063. The reversal of 25021053 is 35012052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19740249 + 5280804 = 4443^2 + 2298^2 .

It is not a de Polignac number, because 25021053 - 2⁴ = 25021037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25021063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13458 + ... + 15203.

It is an arithmetic number, because the mean of its divisors is an integer number (3042949).

Almost surely, 2^25021053 is an apocalyptic number.

It is an amenable number.

25021053 is a deficient number, since it is larger than the sum of its proper divisors (11494335).

25021053 is a wasteful number, since it uses less digits than its factorization.

25021053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28764 (or 28761 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 25021053 is about 5002.1048569577. The cubic root of 25021053 is about 292.4838299192.

Subtracting 25021053 from its reverse (35012052), we obtain a palindrome (9990999).

The spelling of 25021053 in words is "twenty-five million, twenty-one thousand, fifty-three".