25535442 has 16 divisors (see below), whose sum is σ = 51833952. Its totient is φ = 8384640.

The previous prime is 25535441. The next prime is 25535467. The reversal of 25535442 is 24453552.

It is not an unprimeable number, because it can be changed into a prime (25535441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31359 + ... + 32162.

It is an arithmetic number, because the mean of its divisors is an integer number (3239622).

Almost surely, 2^25535442 is an apocalyptic number.

25535442 is an abundant number, since it is smaller than the sum of its proper divisors (26298510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25535442 is a wasteful number, since it uses less digits than its factorization.

25535442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63593.

The product of its digits is 24000, while the sum is 30.

The square root of 25535442 is about 5053.2605315776. The cubic root of 25535442 is about 294.4745679029.

Adding to 25535442 its reverse (24453552), we get a palindrome (49988994).

The spelling of 25535442 in words is "twenty-five million, five hundred thirty-five thousand, four hundred forty-two".