25032642 has 32 divisors (see below), whose sum is σ = 51383808. Its totient is φ = 8126976.

The previous prime is 25032617. The next prime is 25032647. The reversal of 25032642 is 24623052.

It is not an unprimeable number, because it can be changed into a prime (25032647) 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 15 ways as a sum of consecutive naturals, for example, 70738 + ... + 71090.

It is an arithmetic number, because the mean of its divisors is an integer number (1605744).

Almost surely, 2^25032642 is an apocalyptic number.

25032642 is an abundant number, since it is smaller than the sum of its proper divisors (26351166).

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

25032642 is a wasteful number, since it uses less digits than its factorization.

25032642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 25032642 is about 5003.2631351949. The cubic root of 25032642 is about 292.5289795234.

Adding to 25032642 its reverse (24623052), we get a palindrome (49655694).

The spelling of 25032642 in words is "twenty-five million, thirty-two thousand, six hundred forty-two".