25342521 has 8 divisors (see below), whose sum is σ = 34703424. Its totient is φ = 16438320.

The previous prime is 25342519. The next prime is 25342567. The reversal of 25342521 is 12524352.

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

It is not a de Polignac number, because 25342521 - 2¹ = 25342519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25342491 and 25342500.

It is not an unprimeable number, because it can be changed into a prime (25342501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114045 + ... + 114266.

It is an arithmetic number, because the mean of its divisors is an integer number (4337928).

Almost surely, 2^25342521 is an apocalyptic number.

It is an amenable number.

25342521 is a deficient number, since it is larger than the sum of its proper divisors (9360903).

25342521 is a wasteful number, since it uses less digits than its factorization.

25342521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228351.

The product of its digits is 2400, while the sum is 24.

The square root of 25342521 is about 5034.1355762435. The cubic root of 25342521 is about 293.7311045036.

Adding to 25342521 its reverse (12524352), we get a palindrome (37866873).

The spelling of 25342521 in words is "twenty-five million, three hundred forty-two thousand, five hundred twenty-one".